Well I am getting really close to having this be 100%. I have dialed in most of the shift points and am not having any major problems. I just talked to PCS and when time is permitting they are going to get the speed sensors set up. This will basically make the thing work flawlessly. Right now I am not having any problems but there is always the potential without gear recognition. With gear recognition it will operate with almost the same premise that Mercedes does as far as completing gear changes and limp modes.
I am using the small nag transmission with no power holding problems due to the shift firmness under load. And with a 3.27 rear end I run at 2200 rpm at 60 mph in 5th gear.