I am planning on picking up a 3A and 6A. I once tried on a Size 40 3A and found the fit in the body to be quite good. Except the sleeves which were tight at the forearm from the elbow to the wrist. I am about 5'9" and 165 lbs. I might put on the some muscle in the upper body as I am starting to work out. The body will still be fine, but I think the forearm might end up even tighter. Do they stretch out or should I size up which of course would only be helpful if the size 42 has more room in the forearm.
As far as 6A is concerned, should I go with the same size as 3A. Endclothing's measurements for 40 say chest p2p 3A: 21" and 6A: 19". This seems like a significant difference. Are these measurements fairly accurate because then I guess 6A should be sized 1 larger than 3A?
Your help is much appreciated.