Need help deciding on a good brushless system!

[kingiggy262]

Hey guys I am trying to decide what brushless system to upgrade my MM/8XL on my Revo with. The Feigao 8XL gets hot and just doesn't seem to run smooth enough for me. I was thinking that I could sell the motor and get a Neu 1515/1Y using my current 4s 8000 maH lipo's. If I did this then I would just keep my MM.

My other option was to go much higher voltage and use 8s 4000maH lipos with a Neu 1515/2Y and a Jazz 55-10-32 esc.

I know the 8s setup would be the most efficient and probably run smoother than the MM with the 1515/1Y but the price is what is holding me back from going the 8s route. Does the 1515/1y run smoother than the Feigao 8XL with the MM esc?

Any other suggestions are welcome! Thanks