"Sometimes I've gotten 2 inch groups that were nowhere near the center. It shows consistency but it's not good shooting.."

Outdoors, you may want to reconsider this. If this occurs because of consistency and not accident, then it is in fact good shooting. The problem lies not with the group, but the POA (point of aim). For instance, a crosswind of 15 MPH might wellmove your shots off of the target face dot by several inches at 100 yds. That doesn't mean you shot poorly, only that you need to consider windage if you are truly looking to hit a specific spot at that distance and under those conditions.

I've been getting lots of "flinch practice" lately, as my caps have been failing to fire. (50% of the time on Sunday). I swear I think it's making me a better shot. A useful exercise at the range might be to have a friend put the primer in your gun, or not, just to see how you handle it. I find the fliers are the most educational shots I take. Another useful drill is to "call your shots". Really helps to identify weaknesses in form.