My suggestion for you to consider, though it maybe hard, is to get behind whatever stock(s) you are looking at before purchasing.
For example, different situation but similar. I purchased a Savage 110 BA 338 two years ago and I no longer shoot it because I just cannot get comfortable behind the stock. I can honestly say I find it uncomfortable to hold/shoot.
I have since had a Custom 338 built on a AICS AX Chassis and shoot dimes all day. I love this stock.
Also, guy at local range purchased a McM stock and he cannot get comfortable with it. He has since purchased a AX 2014.
Just a few quick thoughts.