Craig:
I currently use the Choate Varmint with a Rem 700 BDL action, Hart Bull 26" barrel in 7mmRMag. I did not choose to use the Tactical - just because! The stock is just south of 4 lbs with full alum bed. It works fine on a bench or in the field. I would definately recommend that one use a smaller standard barrel. This would make it lighter (less nose heavy) and far easier to use in the field. The pistol grip is a clean fit for me for bench or field, but I'm biased as I also use an AR for Coyotes. It can be counter balanced, but why add more weight, use a skinney barrel.
As a comparison, I also use the McMillan A3 Tactical on my 300 WMag. Personally I like them both, but for a field gun the Choate probably has a slight edge (weight -1 lb).
All of the adjustments for cheek, shoulder, LOP all help to make the gun fit you for whatever application that you want to use it.
Anyhow, I wanted to throw in my $.02....