Sounds like the legal communities of Chicago and Milwaukee...they also do quite well with the blazer/flannels rig.I wear my burgundy ones with a suit at least once a week. In fact, I can't recall ever wearing them when I wasn't wearing a suit.
My ancient Alden/JAB welted burgundy calf tassel loafers fill in the same duties.
I'd wear Graysons or their moral equivalent with any suit except distinctly Savile Row London or Italian style (but then then would I wear that type of suit???).:icon_smile_big: