Went to the track last night and experienced some shifting issues. When running the car in D it would sometimes not make the shift from 2nd to 3rd unless I let off the throttle for a second. If I ran the car with the shifter in OD it seemed to shift fine. I guess my first question is why is it doing this and secondly is it bad to run the car in OD like that? Transmission is the stock 200R4/Converter with some mild shift enhancements from David Husek.