[Hectic]

Yeah it moves freely in the guides and in the cylender. im thinking its most likely the gears are a lil too tight.
And perhaps the battery is a lil low compounding the issue.
Ima pic up some bearing bushings that hopefully sit flatter in the box and reshim and see how that goes.
I dont think the piston itself is too heavy but the way the stock head was attached was via a big ass block of metal as a nut and that adds some huge weight on it. May find a suitable nut n bolt or jut grab a whole head as itll coke with the nut bolt and washer to attach the head with.
I think on a 9.6 pre engagement wont be an issue. Maybe an 11.1 but the times it did cycle it wasnt all that much faster then a normal aeg (kinda dissaoointed really.)