I have a bone stock Revo 2.5r model 5310 which I haven't used since 2005 because the stock engine isn't working right. On a whim, I decided to order the OS 21TM because my neighbor's OS 18 T-Maxx fired up instantly after years of non-use and ran surprisingly well with only a minor tune.
I still have tons of parts from my Stampede, and OS powered r/c plane so hopefully I have what I need to get up and going again. Either way, I added a few extra things to the shopping cart like fresh fuel, fuel lines, fuel filter, an rx battery battery pack and a handful of glow plugs to be safe.
I got bored waiting for the stuff to come in the mail so I began to scrutinize the truck and I realized that replacing the servos might make the truck handle a little better. The throttle and steering servos are all Traxxas model 2055. Anyways, would I notice a worthwhile difference if I upgraded the three servos to say the Hitec 645MG? Or any other servo (within reason)?