2008 150 Optimax SN: 1B550483 on a 2008 192 Pro Craft Super Pro
Issue:
Random miss/stumble at idle. Really only noticable in gear.

What I have done:
Replaced Compressor. (old one went out)
Replaced fuel line from tank to lift pump.
Sent all 12 injectors and rails to CCMS (great guys) for testing and cleaning.
Replaced plugs. Third set in a year.
Rebuilt lift pump.
Replaced reeds with CCMS. (did not not lap cages. Plan to re-do the reeds and lap cages.)
Drop cylinder test. Unplug each injector, and engine drops. Cleans up when plugged back up.
Pulled each plug wire on muffs, and appears to jump around .5 inches.
Cleaned VSP. Was spotless. Cleaned the pump screens for good measure.
Tested battery. Tests good, but still suspicious.
Replaced TSP.
Replaced fuel filter.
I DO run ethanol gas, but simply because I don't trust the stores in my area that advertise the non ethanol.
I DO use marine Stabil in every tank.
I DO use quickcleen in every tank.
Compression is between 110 to 115 on all cylinders.
Checked fuel/air pressure with tire gauge.. Need to check better. Appeared 90/80 psi Fuel/air at idle.
No Alarms.
Seems to run fine in every stage above idle.
I believe I am over propped. I have a 23P Tempest. Max RPMs are 5200.
Curious if this low RPMs are the root of all of this, or if the problem is causing the low RPMs..
I have not taken it to a shop yet to have it connected and scanned. That probably needs to happen.


I have a video, but have not found out how to post it here...

I have read for hours on this site, and probably tried more things that I have listed. I really appreciate any help.