I used a standard EH1 this year and it was fine. Used a T2 (basically the same thing with a wider fore-end) a couple years back. I shy away from the "A" models because the adjustable hardware usually adds about a pound to the stock weight. I opt for kydex if I need a cheek riser. The rifle has a Proof CF barrel, and is a multi-purpose hunting/target rifle so I was going for lighter weight in case I have to hike it antelope/elk hunting.