[Nard Cox]

Don't forget to check the clubs / competition guidelines if you want to race in a league. There are leagues were you can only run 4S, so check that before deciding on how many cells you want to run.

Concerning the Tekin vs MMM .. some like Tekin, some like MMM. My personal opinion is that neither of them are bad. For motors you can/should also check out Neu (Castle Creations motors are based on these Neu motors, but Neu tend to perform better).