[jhautz]

4200kv seems like it would be too much for 11.1. You will be reving it really high and it will probbly run hot. I got rid of my XL4200 cuz it ran to hot on 3s. I would recomend going for something more in the 3000-3500kv range. You can gear ir up and get just as much speed, it just runss cooler. Especially if you go w/ the basic XL. It will have plenty of torque to gear it up.

I really think the Basic 3100 would be ideal for a rusty on 3s.