No matter how Jean fashions and brands come and go...I always find myself going back to the one's that have been my favorite since before high school--Levis. In particular the straight leg 505 (with zipper fly) and 501 (button fly). My question is this: Over the years the cut of the 505 (which is generally described as being the same cut as the original 501 except for the zippered fly) has seemed to be somewhat inconsistant in it's cut and styling--especially in leg opening width. The 501 model seems to remain consistant (btw I always go with pre-washed these days, shrink to fit is just too uncomfortable, tedious and unpredictable...but to each his own). The 501s just seem to be made of a bit higher quality denium, fit better and more consistantly. While the 505 zipper feature is frankly more consistant...I wonder if anyone else has noticed any difference in the overall fit and consistancy between the two?