I doubt it is "dialed in"
I have 4 yrs. and over 350 passes with my PCS/4R100 and I still tweak on it nearly everytime.
I've been waiting a long time to see a thread like this! You couldn't give me a 5R trans again, JW and I talked about putting a 4R in my 6.0L when I had it and if the trans had given me any problems while I owned it that's what we would have done. I know he's got at least one 6.0L truck with a 4R running around in Cali for better than a year now that is supposed to work real good.
As for PCS and the 4R, killer combination. There is something to be said for having a trans that does exactly what it's told, when it's told, without any OEM BS getting in the way...and for being able to change it at the track as needed! I'd say mine is pretty well dialed in, we make minor tweaks to shift speeds or lockup speed as we make progress with the engine...mostly to manage peak RPM. Otherwise it's pretty spot on for the track and not bad for the street (where I've spent the least amount of time and have the least amount of concern).
Hey Craig...now that you've got the PCS, time to add the D200 Datalogger! That thing has been AWESOME for figuring out what is going on in my truck, it's amazing what you can see with a logger that records at high speed and is looking at the right inputs!
Can't wait to see some results from the conversion...the tracks are open in Phoenix and the NHRDA season opener is here on March 10th if you need a good excuse to get out of the cold!