I was working on a number of different drills during my last range trip, including the 1r2 drill. This was by far the best group of the bunch, and I was pretty pleased. I was taking my time, and focusing on the mechanics of the reload/grip/sight picture. I don't have a shot timer, so I have no idea what the splits were on this, but I wouldn't call it slow fire. Still I think the results are pretty good! Now I just need to get groups like this more often!
Bragging aside, the 1r2 drill really shows you whether or not you have a proper grip post reload. This was the best by far, but I could clearly tell by the group size (or lack of a group) if I was getting a good grip and sight picture after the reload.