here's a big pile of questions: need setup advice

[mk351e]

my quest for understanding continues............

so if a neu can safely spin to 60k, and I'm spending $255+ on it, then don't I want to be able to hit 60k rpm with it if i want? Not that I'm gonna run that speed all day long, but shouldn't I be able to hit that number or close to it sometimes? If not, why? If heat is the issue, will it really be? I can make some type of air intake, and it will be the finned can anyway. If so, then wouldn't a 1515 1.5D (2700kv) be the ticket on 6S?? Or the next 1515 down (2200kv)??

Reason is, I saw the 6s savage video (found that a while ago actually), and THAT was what made me decide to go BL! FAST on grass!! Also, I saw satheman's video, and while it was nice, it was geared real high (22T pinion) and STILL flipped like crazy (WAY too much for me) with a 1521 Neu 1577kv. That's why I'm thinking maybe I don't want a 1521; too much torque, AND it looks like the don't come with a finned can.

Feel free to correct all my mistakes!