CEN,
I replaced the servos on my MT2 with the Hitec HS-325 as the throttle servo and the 645MG as the steering servo. What metal horns do you suggest? I ordered the OFNA
Aluminum CNC servo arm (purple)-10732. I think the holes are too close together and the one on the end is to big. I read this article and wanted to upgrade;
http://www.rcnitro.com/rn/articles/superShop_3.asp