I appreciate all the feedback. I am getting excited and hopefully will have a functioning Electric RC8 by next weekend!

However, I am having buyer's remorse about the Quark. It might be unfounded. I guess since I am new at this I just want to make sure I am getting the right stuff. Some seem to say it runs great and is the smoothest ESC and excellent customer servive, but others point out it has some serious heat issues (and others haven't had heat problems). Given that after the heatsink, fans, and potentially having to use an external BEC, I am already at the cost of just getting one of the high dollar MGMs with way more capacity than I could ever need which people say barely get warm.

Should I stick with the Quark or swap it out for an MGM? What are the downsides to getting MGM instead?

I can't really see myself having to use 6s very much if at all given I will be running at 50,000 rpms. I don't even wanna know how fast that would push the car on the street with a big 1515 in it - but I may have to see!

I primarily plan to drive the snot out of the car on a RC track on 4s which gives me 32,000 rpm and should embarrass any nitro. I don't race (yet), but will probably start. Every now and then I might do some street runs or drive across an open field, but my Rusty is really for that. I am not the sharpest tool in the shed with the electric RC stuff yet, so I really don't want to get into having to do a whole lot of modifications and ghetto rigging of stuff to make it work properly either.

Help!