Originally Posted by
tdt1805
I heard you can run unlimited motor turn if you add another capacitor
The extra cap helps but it's not a way to run any motor. It's more important to get a fan blowing across the posts and keep it cool that way.
In the end for me, a 5.5 has been the safe limit for the RS. Add a fan if it's getting warm and you'll be fine.
I've had no problems fitting the pro in anything I run. There's no good reason not to get the pro if you're planning on running a lot of mod. The cost isn't that much more.