An honor to be graced by your 3rd post ever in the 8 years you're in SF.
Get the short. Don't listen to most of the guys here as they'll just recommend Regular no matter what your proportions are.
Haha fair enough but I do appreciate everyone's input here as I am somewhat a suit noob and definitely new to spier.
It's just confusing as numbers would seem to indicate 40 but suit supply 38s fit like a glove with only needing sleeves lengthened. Doesn't help spier lists actual circumference measurements and ss lists widths. Both are fine to use but it makes it harder to compare.