I'm finding out my starter O ring was not engaging properly because the fuel leak from the festo fitting got the compressor nut wet with fuel, just enough to make the starter O ring slippery.

This my be the root of all my problems, the starter O ring getting some of the leaked gas, just enough to make the O ring slippery, that makes sense, I was experiencing not enough rpms during the ramp up sequence.

I cleaned it all with glass cleaner and tested it, it is engaging and accelerating normal.