haha I had a 7700 in my xtm e-xcellerator and to this day I have no idea of it's topspeed because it would wheelie too much(I even added weight and it still did it)

honestly a 4600 is still fast and would be hard to control unless you're really good at driving

best bet for being able to control on the track would be a 10.5 in my mind..but the 4600 would be well suited for speed runs on 3s and track running on 2s IMHO