Did you get your trans back Mark?
I'm going to guess that most likely the torque converter has loosened up a little bit. You will only know if you're having a problem with the transmission if you get a code referring to line pressure.Wondering if Clint diverted some of the torque converter oil flow for higher clutch pressure? Would explain why my Pro Edge converter is acting like a 3000 instead of a 2800 stall.
PS. The ATS trans and Copilot is still working great in my truck.
My 05 Bee I went thru 3 of those P.O.S ATS trans, co-pilots and all of Clint's "excuses" pulled the 442 motor out of it sold the rolling chassis put the 442 in a 69 Cuda ,sold the Cuda and bought my current 04 back in June 2020, had a T56 behind the alum 468 with Thitek heads when I bought it, not a stick guy, too slow of a shifter guy... tried a 4l80, too many issues, then had a 8sp in it, spent a ton of money on the sound German system ,truck ran great , but was slower then the t56 set up even with my crappy shifting, though about a NAG1, the guy who built my truck for my buddy I bought it from said I'd pick up 2-3ths by switching to a 46rh, did the switch and haven't looked back, went from 11.0s to 10.80s @ 4750lbs , this winter I'm having a 518non-lock(46RH) up built, truck needs more convertor then I can get with the lock up system,...... but in the end I think I'm going to end up with 727 in it, and just give up on the OD , truck spends most it's non track time on the trailer waiting to go to the track,I switched to a 46rh almost 7 years ago and never looked back. Totally happy with it..