Several notes on the painting
Adding another pair of cinder blocks to this set up will raise the
height and reduce the chances of insects becoming a permanent fixture
in your paint scheme.
Shock cords have a bad habit of working their way out of the forward
end of the booster as you rotate it. Find a way to secure them.
The booster has a tendency to drift and get scraped by the cinder
blocks you don't keep an eye on it.