Speaking of End, I received the Japanese SL Windowpane Bedale jacket last week and it's a great jacket.
I got the 38 and 40 because I wasn't sure of sizing. End's measurements are a bit off on both those sizes. The 38 measures 21.5'' p2p (vs 21'' on End) and the 40 is actually 22.5'' p2p (vs 21.75'' on End).
I kept the 38; it fits nice and slim, but not tight. For reference, I wear a 38S in suits and sportcoats.
If anyone is looking for a size 40, End should have...