I have the small cylinders on my gear and the same retraction problems. My Comp ARF rep is getting me replacement cylinders but they are not free for sure. I have to pay for the cylinders.

My opinion is Comp Arf is ultimately responsible for selling a gear system that does not work properly with their plane. They should provide at no cost and work it out with their vendor (Erwin).

Erwin is telling my rep there is nothing wrong with the size of the cylinders. Yea, I am sure they might work at 200 psi!
Mine don't work at 150psi.

My Comp ARF rep is great for handling this.

If you order a Hawk, insist it comes with the large cylinders.

Jeff