I'm 6'1". I've owned 5 different A2 jackets. I'm bigger than you, I take a 46 or 48" chest. My jackets have ranged from 25" to 28" in the back. The best fit for me is in my two GW jackets, each of which is 26.5" in the back. 25" is too short and 28" too long, in my opinion. Sleeves of 26.5" on...