Originally Posted by raron455

Yes Chris, the bigger cylinder is the winning ticket.I have had 4 of these jets, 2 gen 1s and 2 gen 2s, I have had door issues with every one of them, except 1, that I bought used, and he had upgraded with some JMP cylinders. I have installed 7/16 Ultra precision cylinders on my others and now this one and has solved the door problem.I do have a 210 in mine, but the doors would come open even around 1/2 throttle. The door issue is a pretty common problem with these planes.