B is what I need. I have a couple that has the A spring in it. I want to try some 6oz to 8 oz pulls on competition rifles. When I get the A spring at its lowest setting it is erratic.
Off Topic: I'm finding that TT single stage Diamond that is advertised to set from 4 oz to 32 oz cannot be set much lower than 12 oz in an Impact without pull weight jumping +/- 2 to 3 ozs. Consistency is what is most important to me. The TT rep from Canada said that equal his experience. I have 6 or 7 Impacts. I'm just running them at 12 oz. Set there the break is consistent, steady, & crisp as I have had. I haven't tried a Bix& Andy TacSport Pro yet, but that would be waaay toooo much money as I like the same triggers in my rifles.
Thanks for trying to help. You and Jill have a beautiful fall day. Our color change has started in the Ozarks.