I currently have a Feigao 8s and warrior 7018 controller in my Stampede. I'm considering the Wanderer 7s but I don't know if the controller I have would handle it. I'll likely be running no more than 8 cells maybe 9 or 10 once in awhile just to see how fast it will go.
I haven't run more than 7 cells with it yet. 7 cells is enough to shred the diff gear if you have a heavy throttle finger :L: I'll wait till I get the steel gear before I run any more.