Have a 400 cc alpha reaction 10.5 that I love to use and it's listed non conforming. All the other lofts are legal. Why would the 10.5 be non con? Does it exceed 360 COR?

Usually when it's just one loft of a model that's non-conforming, it's because of semi-cosmetic issues -- hosel attached to far into the center of the club, etc. I don't know the reason the 10.5* 400cc Reaction was deemed non-conforming, but Alpha might tell you if you email them.