So a beginner level racer recently showed up to the track with this radio and I've been working with him on his setup and after testing the radio while driving his car, I'm considering making a purchase.

Only thing that has me second guessing the buy is that it doesn't use a percentage to control the steering speed, it goes in increments down to the hundredth of millisecond which is very confusing to me... I realize that this increases precision for the tuning option but adds frustration as I prefer to stick with the industry standard using percentages instead. Does anyone know if the Pro can be flashed backwards to the NB4 firmware which uses percentages?

This is the only potential deal breaker for me before I pull the trigger... pun intended, ha!