I read about the use of rubber bands to help with attaining the planche proper, so I tried a set-up in my garage, it seems to be working well so far! Feedback is appreciated...see the second video if you only want to watch one, in that one you can see the complete set-up:
I'm doing these in addition to planche push-up variations (2 days/week) and isometric hold planche variations (on the other day of the week when I'm not doing these assisted planche holds). I do 2 days/week of Gymnastic Strength Training™ in addition to my 2-3 days/week of OL and PL training.
I hope someone finds these helpful.