Question about motor rpm

[magman]

If I have the same setup.....5k 5s, and one motor spinning 35k rpm and the other at 32k, will there be a noticeable amt. of run time difference....geared the same


set up:1. mmm esc
2200kv ccneu
5s 5k li-po

2. mmm esc
1515 2d Neu
5s 5k

The Neu spins 3k slower than the ccneu....so I am figuring that I should get a couple of extra mins. of run time assuming nothing changes but the motors.....yes, no