RL run way too large except for the custom fit unless you are a fat-ass.
Nah, you tuck them in. The custom fit doesn't fit my arms and if I get a size bigger they look the same around my stomach as the regulars.
I have to tuck them in or they'll "float" around my midsection. Adults don't try to dress like hollister kids. I'm 6' 195 and ralph lauren fits fine. Polos shouldn't be form fitting like Abercrombie type clothes.