Thanks for the feedback of (9e51f0b) vs (a62385f).

Current tally:

Better for:
    cliftonk : WIN10 Ubuntu18
    DieselWeaseI : Ubuntu18 (Odroid N2)

Worse for:
    WilcoWi : WIN 10
    os2sam : WIN7 & RPi3
    lrowland21093 : PiZero

Just a reminder too that it's not done tuning until T: & P: are the same value (or within a few MHz). I may have slowed down the upper end too much to keep it from hitting plateau too hard.