OK, after using these gear and testing retraction ability and strength...

They are crap.

Consider it a $275.00 lesson. I charged my air tank and started putting the gear thru its paces, I could have saved myself time and money.

The main cylinder on the left wing retract leaked air constantly, I tore the gear apart to figure out what was going on and ended up finding out that the piston doesn't firmly seat against the cylinder wall. At no time did I over pressurize the gear, so I'm not sure where the leak came from. After cycling the right gear for a bit it started working only sometimes. Not a good thing when it comes to retracts. Ends up the piston is actually slightly bent at the rod as I watch it travel up and down in the cylinder. I think I can fix this. Since this gear hasn't flown before

The Aluminum for the mounting brakets are crap. I nearly snapped the left mounting box apart by trying to screw it down tight.

I'm rather pissed at myself right now for not doing some more research and will be buying Shindin or Sierra from now on. Period.