4s vs 5s on Neu 1512 1.5D and 1515 1.5D?

Yea its alot faster
after the MMM came out I figured I would push the MM s I have..
And I have been running 5 and 6s
in my 8T w/ 1512 1.5d and old(tired) Mamba Max
Nova cap, CC bec @7V... , 12v fan screams @22V
11-12t/46t plastic
temps are better
the center diff w/40K gets the hottest
And pulls wheelies @ straight away speed again!

The motor is rated for 60k but ,Imo, that is really only the bearing rating
And the kv rating for the motor are all No-load... Don't do that
the motor wires are rated for alot

With cation and for testing series a 2s and 3s for 5 and then a 4+2 for the 6s
Don't blame me if your results are different