Initially I used .022uF couplers to the power tubes but used the .047uF on the couplers to the PI.
Yesterday I installed the stock PI cathode and tail (1K2/47K) and changed the .047 couplers to .022uF so all of the couplers are now .022.
Still has plenty of bottom and I think the PI resistors helped a bit as well.
I know this, the amp is louder than it was before but I only had two 12ax7's before, then the power stage.
Great circuit for sure.
