I have a fluted .22-250 with the Choate Varmint stock, it's not as bad as I thought as far as ergonomics, it's easier to shoot from a bench with a bipd and no rear bag. Those that have them on heavy recoil calibers really like em, I'm sure Larry (Poncaguy) will check in, he has several of the Choate stocks, highly recommends them.
The fluted barrels look nice, but I don't know that they're any more accurate or cool faster, but they do look good! I've been thinkin on doing some stock swapping and putting a lam stock set on the fluted .22-250, or just buying a .243 Fluted barrel.
Tim