Sticky cylinder was bothering me. Minor surgery of the boom to fit a larger stick cylinder. Previously had "10mm" Magom (9mm piston) and now has "12mm" (11mm piston). Stocker was 8mm piston iirc.
Boom had to be upsized to 15mm (14mm piston) since it's what I have on hand. No real performance gain although none was expected.
Hokey hold down method to cut the boom, but it worked. Big bore cylinder is better. Had to fiddle with the radio settings. Not quite as feathery as the boom motions, but respectable for a low cost machine.
Now I'm happy. Just gotta paint two cylinders