Get the Castlelink USB connector and you can adjust the throttle settings via your computer. That's a nice thing to have around to monkey with the Mamba.

The 8000kv in that must be nuts. We have guys who race 4-cell XRay M18s at our track and they're crazy-fast. Thing is, most aren't even using 8000kv motors but rather 6800kv. That scalpel must be crazy fast. Maybe get a motor heat sink and add a tooth or two to the pinion and go even faster!. Try to get it out onto a local race-track to see if it'll work there. You may need a large-scale track to run it on (for 1/10th cars).