We have actually done some really cool stuff. 1. We made a straight line putting string device with and put beads on it. He is working on putting stroke and consistency. Beads are to move on the string to spot the ball for putts of distances you are working on. 2. Bought a SKLZ putting mirror to make sure his eyeline is in the appropriate place. 3. Work on lag putting drills. Constantly preach that the ball need to go past the hole. Don't care if it is 8 ft. by, but it needs to go past the hole. Want him to feel like it is OK to run it by. Take the fear out of running it by. 4. Work on Chipping to get better approximatey to the hole. Constantly preach that the ball need to go past the hole. Don't care if it is 8 ft. by, but it needs to go past the hole. Want him to feel like it is OK to run it by. Take the fear out of running it by. 5. Work on approximatey to the hole with iron shots. So far, all seems to slowly be coming together. Really trying to change his mindset.
Sounds like you are on the right track to me. I have told you this before but it bears the repeating for anyone that is working with their child on putting. The worst mistake I ever made was to get frustrated that my son was running putts way past the hole. DON'T DO THAT!!! unfortunately, your child will listen to you and leave it short!!! It took a long time to break him of the short putt habit.
The drill that really helped my son was the drill you mentioned in a previous post. That is have him putt to a tee that is 3' off the edge of the green. The ball has to stop between the tee and edge. I put tees 15, 18, 21, 24 and 27 feet away. If the ball stops between the tee and green he moves back. if it doesn't he moves forward. He cannot stop until he is successful at 27'. Tough drill.
Keep it up and please keep updating the thread and what is happening.