50 Psi...
 

Blue,
Tell you what, I'll crank my PSI up to 50 from 43 and see if I still get that hesistation. Mine normally seems to go away after the engine warms up or about 15 minutes of traffic driving.

Hozer,

My stutter gets a little better after 15 minutes, but does not go away. Try to take your car to a dyno...they will be able to set everything up the way it should be....otherwise tuning everything on your own could take a while...and you may never know if you have the right combo of settings (keep in mind this is what I've been told...I have yet to try it myself.) Let me know.

Kevin

50 is good initially...
 

It looks like 50 PSI is good for now, but the real test will come after sitting overnight. I'll report back asap after tomorrow mornings run.