update, car is running, I did the drive calibration, and still the same problem, i then adjusted the current loop balance per the instructions, by adjusting pots r92 and r94. they were both at .007 volts, adjusted to .000, and the car will now slow down in the up direction and set the brake normally, no hesitation as before. the only problem is that i could not get the up and down floor levels equal. the car would only stop level in the down direction, in the up direction, it would stop about a 1/2 inch low, if i adjusted the floor levels with the tool, i could get it to stop level in the up, but it would be 1/2 inch off in the down. i reset the vanes, and relearned floors again, but same outcome. so now I'm really confused. i was looking thru the drive parameters under msu motion adjust, and i noticed the parameter min_pos_error, it was set at .500 which is 5/10 or 1/2 inch. I changed it to .200 like the other cars, and now the car comes in nearly level in both directions. had to change it to .100 to get very nice floor levels. the car is still a bit slower in the up leveling as compared to the down, but it is running fairly nice.
actually this is the smoothest the car has ever ran. I'm sure if i could get into the drive, i could make some other adjustments to get the up and down level speeds more equal. but for now I'm just glad it is running, as i did not really want to install the new upgraded drive unit. i can tell the up speed is slower, as the doors are about 1/2 way open before the car finally stops level. in the down direction, the doors are just a little open before the car is level and the brake sets.