This is my first automatic on a bus and it seems terribly mushy. It shifts smoothly, which from what I hear is very unusual. I get down the highway just fine, but I'll be pulling 35 mph on most long hills. Down to 25 in the mountains. I'm told I'll get used to it. I plan on driving my 545 for as long as possible, and in the mean time I'll be looking for a better transmission as a replacement. In the event of transplant, such as breakdown on the road, I'd hope the controller would come from the same donor vehicle as the transmission but that could only happen if it was the same engine with the better trans, without all the recoding and stuff.
It's so much easier to just get a better bus. I need automatic chains and air conditioning.