It looks like the cap needs to be shortened a little bit.

 

Shoulder is too wide.
Pricey to fix.
Doesn't look too bad, IMO.

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Pricey is in the eye of the beholder. Given the cost of the jacket, a small price to pay to make it wearable.

Besides, it's really not that costly or complicated for a good alterations tailor. I've had the same thing done on a few jackets and I've paid around $60. I don't know if that's a good or bad price, but I trust her, she does good work and I'm happy with the finished product.

 

Shoulder is too wide.
Pricey to fix.
Doesn't look too bad, IMO.

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In the future, should I try a different size jacket, or perhaps a different maker? I know bespoke or perhaps MTM would solve the problem, and but for convenience and cost I prefer OTR for now if I can make it work.

 

Given that it is a Regent cut, that already has a high armhole. For comparison, try a Madison in the same size to check the armhole issue.

 

Very few BB sport coats come in the Madison cut it seems. But I may go try a suit coat in Madison and see what the shoulders look like.

 

If you are referring to the buckling, in the second picture, under the shoulder/sleeve seam at your deltoid area, that is the effect of "forward shoulder"; i.e., you rounded your shoulder blade forward a bit. The typical symptom is that you will feel tight at the front of your deltoid and loose at the back. It seems that there is an empty space right behind your deltoid area.
The armhole may be a bit tight for you, but not too much.

Try moving your shoulder back and forth with jacket on to see if that can be minimized. If at your resting posture you can still observe this, you might need a bigger armhole of the same size jacket (i.e. BB Madison cut).

Alteration for the "forward shoulder" can be costly.

Forward shoulder is very common these days, especially with the smart phones...

 

If you are referring to the buckling, in the second picture, under the shoulder/sleeve seam at your deltoid area, that is the effect of "forward shoulder"; i.e., you rounded your shoulder blade forward a bit. The typical symptom is that you will feel tight at the front of your deltoid and loose at the back. It seems that there is an empty space right behind your deltoid area.
The armhole may be a bit tight for you, but not too much.

Try moving your shoulder back and forth with jacket on to see if that can be minimized. If at your resting posture you can still observe this, you might need a bigger armhole of the same size jacket (i.e. BB Madison cut).

Alteration for the "forward shoulder" can be costly.

Forward shoulder is very common these days, especially with the smart phones...

Moving the shoulder back and forth doesn't make any difference. I would try the Madison, but it doesn't seem BB makes a lot of sport coats in that cut. I may have to switch to another maker.

 

A larger armhole maybe best, but most often it wreaks the jacket (less freedom of movement). Sometimes the armhole is in the wrong place or angled wrong.

Forward shoulder means that the upper back needs to be wider and the upper front needs to be narrower. Shoulders roll forward curves the back and that curve needs extra cloth length. It also hollows out the front a little bit and the excess is removed to be rid of the pressure on front of the shoulder.

 

Interesting stuff. I can't wear BB either for the same reason. I also have somewhat forward and sloping shoulders.

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Another shoulder fail. This is the Lands End Chino Blazer traditional fit, 40S, on my average 5'8 frame. Shoulders look half decent from the front, but the side really shows the poor fit. Given it was unlined, I didn't think it would have shoulder pads, yet the shoulders are pretty well padded and stiff.

I gave it a shot because I like their shirts, it was on sale for $55 online and it is unlined.

Edit: yes, I usually wear shoes and tuck in my shirt when out and about.

 

Another shoulder fail. This is the Lands End Chino Blazer traditional fit on my average 5'8 frame. Shoulders look half decent from the front, but the side really shows the poor fit. Given it was unlined, I didn't think it would have shoulder pads, yet the shoulders are pretty well padded and stiff.

Gosh, I don't think that's too bad at all, and a steal at $55. Yes, maybe the sleeve is pitched ever so slightly forward (may only be on the right side), but especially for a chino fabric, casual jacket, it's a pretty minor thing. The only beef I have with some LE items such as this is that the fabric they use, be it wool or cotton, tends to be 'stiffer' than more expensive competition, which I've always attributed to them sourcing cheaper fabric.

 

I am not a tailor but I think there are two different possibilities here. If the shoulder is rolled forward it causes a divot along the back side of the upper arm. I think that is quite different from the first post where it appears the shoulder is too large (which might be fixed by opening the armhole).

 

@HanEyeAm, looking at your first picture, I am wondering if you realized that you posed in a sway-back posture as shown in this picture:

Person on the left.

Your upper back is protruding backward while your shoulder move forward a bit. The front quarters are lifted up a bit because of this.

I am hoping that is not your natural stance, but it was something forced when picture was taken. Because if that was your natural stance, you might want to research on posture and how to correct it for your own benefit, not only for suit fitting but also for personal health.

In fact, since this jacket is a classic fit, it should fit you ok, if your posture supports it. In your second picture you seems not to stand that sway back and the front lower quarters have nice parallel vertical lines. That gives me hope that the jacket can fit you. You still have some little emptiness behind your deltoid, but that should be minimized once the posture is corrected.

Do some stretching exercise and pay attention to your posture can go a long way for suit fitting.

 

Thanks for the comments. I do have a natural, slightly slooping posture. Good call! I'm going to reassess tomorrow...

 

I agree for HanEyeAm that shoulder pitch is the issue and assuming he was unusually standing straight up (shoulders back) the jacket may indeed fit better with his more natural posture. Clearly for those who have unusually good vertical posture or who stoop shoulder pitch needs to be addressed.

 

When looking at the two pictures one (profile) shows the bottom edge sloping up at quite an angle towards the front. So, balance is off among other cuts. The coat is not cut for this person at all.

The second picture shows the fronts parallel, and is the bottom edge, now, level?

None of this makes since.