Absolutely great jacket ruined with 1 cheap flaw - Tru-Spec 24-7 Tactical Softshell Jacket

This is an absolutely incredible jacket! Never have I had such a durable & technical jacket!
This jacket has vents, zippers & pockets like nobody's business & IT LOOKS GREAT!
It is "fitted" style & almost is perfect. It is this "almost" characteristic that ruins it.
The fit is perfect except for 1 area in the armpit, it's about 1.5" too tight. If you have it on & zipped partially you can run your hand inside to the armpit & you will feel a "ring" about 1.5" too tight.
Because of this shortcoming it is difficult to pit it on with anything more than a tight t-shirt or tight long sleeve T. Anything beyond will ride up when you put the jacket on & feel extremely tight IF you manage to get the jacket on & internal sleeve extended. I wanted to call them to exchange this for an XL however that would mean that the rest of the jacket which fit absolutely perfectly would be too large. I guess this is the reason they are sold at these prices, otherwise the jacket is phenomenal! I am not "skinny" or "slim, I have a moderately "athletic" cut fit & this jacket is a killer in the armpit. Hopefully you correct this. I would love to get another jacket after that fix! Thank you.