This is high up on my favorite pp1 levels. Very difficult to find a way that gets to all the necessary points. This would be so nasty if it was incorporated into a bigger pp1 with a few path tricks.
I like to have again levels requiring to prepare path, with back and forth. I was missing that. Now, as I was testing order and different variants in different locations, I suddenly got it done!!! Can't recall what path it was... LOL
4 tries great level. never actually saw the 4 off trick (went striaght from 4 off to done) but amazing way to hide the true solution and nice fun and crazy path!