I bouht a tester on the way home.

Spinning the prop by hand, I couldn't get the needle over 40. Spun it with the starter, and the rear rotor bounced around 100.  The front rotor was between 80 and 90.  I added a little oil to the front rotor, and it to was up to 100.

This was on top of the ATF I added last night.  The engine did seem stronger after sitting in the ATF for a while, but that may just be my imagination.

I put the valve back in, to see what the max compression was on each rotor.  Both pumped the tester up to 120.

I will roll it out and give it another try tomorrow.