Which 1950 for 8s lipo?

[Gustav]

I'm trying to decide between the 10 and 11 turn 1950 (1307 and 1188 Kv respectively)
to be run on 8s lipo.

the vehicle in question is the LST using origional tranny with internal ratio 2:1. Diffs are 3.3:1,RTR weight is 12 to 13 lbs.tranny is forward only conversion and without one way bearing.

I have gearing ranging from 18/51 to 28/51 mod 1.(equivalent to 9/51 to 14/51 for a center diff,duh!)so a reasonable range of gearing.

Question is, should i go for the 10 turn which works out at 37,600 rpm or the 11 turn and 34,200 rpm. I hope 45 to 50mph will be a nice speed for this setup.

Other question is will the 36120 be plenty of safety margin in terms of amps or should i get the 36150?

This one will be a little unusual,everything is transverse,tranny,motor and packs.

Thanks for your comments guys.