When I originally set my luxe up with all the new orings I got, It took me about 5 hours (literally) to get everything set up perfect. It has no FSDO(even left for weeks without firing) and has the feather touch screw IN.
This was probably 2 years ago and have not touched a single thing on the gun except charging it.
The sites may not be the best pricing, but have every oring size in the material needed. There are positive and negatives with the debate between Black Buna vs Urethane/HNBR, but for any oring that has movement go with them. Static spots will do fine with black buna. The metric orings site (for manifold/solenoid) is cheap for alot of them. Its always good to have them, they are very small and delicate.