Yes. Shooting a single station 25,50,75,100 times with the trap moving and locked. Whatever it takes to "Groove your move".
I have spent some time around PGA golfers. Theses guys are all about repetition. I have seen them come off the course after a round and go hit a 100 balls out of the sand or chip a couple of 100. Muscle memory is what comes from that. Trap, like bowling, is a muscle memory sport.Your mind will discard the unsuccessful and retain the successful.
As for post 5, hard rights, 3 good drills.First lock the trap:
1. Hold the gun clear out to where almost you break point would be so that you are waiting for the target to get there. Shoot it so that you don't have to really swing through it. Don't try to "see the lead", just let your brain do the work. Once you are consistently breaking the target, you brain will get trained to get the gun to that point ahead of the target. Start moving the gun back to your normal hold point. so that you are now having to swing through the target. Angles are all about tempo. Get your shoulders moving in time with the target, your gun will come along for the ride.
2. Build confidence that the target won't "get away". Use your normal hold point and call for the target with your eyes closed. Open on your call and go shoot the target.
3. Trap angles really aren't that sharp. Below is a diagram showing a 35 yard target break point from each station for a hard right, 2 hole target. Note how flat that hard right from post 5 really is. A good drill if you safely have the room is to
move 9 feet to the right of post 5( post 6). This increases the angle but you will find you can still break the target. If you can hit them from 6, you can hit them from 5.