83gt: can you be more specific as to why you prefer the 9XL?
Loa
see rschoi_75's reply. I felt the same. The 8xl just ran way too hot, and eventually the rotor shattered. The 9xl runs much much cooler, and It's just all around more fun to drive.
If you're going to keep the 2 speed you may want to look into getting the 11L or 12L fiegao's, about 20-30 bucks cheaper and still plenty powerful. 11L is a bit fast though, so probably the 12L. I'm currently running the 11L in my Losi 8ight and it's a beast.