Going back a page or two to the servo topic, I'm running an airtronics 94746m in the buggy (lowpro .08/89oz) and the Orion 1007 in the truck. Although the buggy doesn't need a low profile servo, I ended up with it in a deal and I love it. The low profile servo leaves a nice pocket for adding weight when needed too. Its not big on torque, but the freewheeling cookie cutters on the front of a buggy don't need it, in my opinion.

The Orion is just an awesome servo... same as the savox 1257 if I remember correctly.

Although a fraction of a second doesn't seem like much, the place where the speed really makes a difference to me is corrections. You can think ahead and turn in a little sooner with a slow servo, but if someone is around you or you lose traction, waiting an extra tenth for it to go lock to lock and countersteer seems like an eternity. If you do that ten times in a race, that's a second lost.