Glad to help, @
Chomps. I guessed that was what was keeping you from doing other drills.
After you send us the grip video, and can move past this concern, there are some productive things you can do in a lane with rapid fire restrictions. Here are a few that I thought of just now:
-Targets of differing size and distance. Do not shoot the same target more than a few times. Get used to seeing what you need to see to make the shot depending on difficulty.
-Multiple targets of differing size (can be on the same backer if there's a restriction).
-Trigger press at speed. Aim on the target, and either using a random shot timer or a buddy, fire on the beep or "now". Press the trigger FAST. Learn how to keep the shot on target.
And at current ammo prices, why not take a good class?