The numbers matter to see if the motor manufacturers are about the same and as close to the Roar limit(27.3 per phase) as possible...I always see trinity motors right on the limit, while others are not... I guess that's the big trinity secret that causes alot of controversies. My FR-1 v3t motors are close enough to the trinity rockets to compete without too much suspicion: no need to worry too much about motors when all the different manufacturers' numbers are posted....Post them up guys !!!!