50.1 EMPTY ? WOW. YOU HAVE A BUILD UP OF BELT DIRT OR GRIT ON THEM. 8BU-00 ARE 48.6 EMPTY. ANYWAYS I WOULD RUN THAT MAXX SPRING YOU HAVE WITH THE 8BU-00 SET AT 54.6. TRY A HELIX AROUND 50/38/39 ish. GREEEN SPRING AT AROUND 80 TWIST. 3:16 (yammie tony)