you may actually want to go with the SV2 4600
the 3800kv 4 pole has a LOT of power, which is fun when you've got traction but if you're running in dirt it's borderline too much power
I've run about 50/50 pavement and dirt on my SC10, and the stock tires are just about bald in maybe 5 packs worth of running (it's been fun though!)