I don't know anyone that runs the .15. I run the NS12S5 and it's already plenty fast. I know a guy who runs the V15 5port and it's not any faster than my .12. For the price, I would get NS12S5. I know someone selling a mod NS12S5 if you want. That will be fast. I also have a 3 port mod from him and its great. PM me.
Kyosho RRR Evo2