you went from "never" to "i did buy" pretty fast lol. I get it though. The AXSR is irresistible. Especially in Elite Sand. The only improvement I could see would be eliminating the safety completely (bolt guns don't need safeties) and bonding the action. Oh, and space for both hex keys in the cheekpiece. And it should come with the TBAC SR brake instead of the CB one.
(I personally like key slot, the axsr trigger, the grip, etc). ....And actually it wouldn't hurt my feelings if they made an AXMC style mag spacer so you had the option of running 308 AICS or AW mags or the 308 axsr mags depending on whether you're really shooting 308 because you want to, or just practicing for a real cartridge.
Curious why you bought all 3 though. I mean, why not buy 2, as the 3rd will come with the rifle? now you'll have 4 bolt bodies