Hi, non (R&C) runner here.
I was just curious about what exactly this PBSPI category means, what is the difference between that and the Max% category,
and why top runs on Max% are shorter.

PBSPI is pretty much a 100% category in which we get everything aside from blue weapons,because grinding them takes hours. Max% on the other hand gets all blue weapons. In Max% we use a glitch called "quit exploit" (ps3 exclusive glitch) which helps as level up weapons by simply killing one enemy. That is also the reason why the category itself is shorter than PBSPI. Quit exploit is banned in PBSPI.

Hahah lol blue weapons grind.... still remember it to this day