Originally Posted by evader-fan-69
ive been racing for years and still run them. kimbrough has some really good servo savers that you cant even feel when driving but will still help you when you get into that random wreck. metal gear doesnt mean all gears are metal just so you know. ive bought 120 dollar "metal gear" servos, only to find that the gear that runs from the servo motor to the gear train is plastic..just as an fyi. my vote is buy one, its cheep insurance, and if your new..its pretty much needed all the time
Futaba's, and I think KO's "metal gear" servos have that single plastic gear. The Savox 1251MG metal gear servo is all metal, and half the price. With ~2 years of running without servo savers (couldn't find one with fitment I was happy with in the Mi4LP for a long time), I've replaced the gears in the Savox 3 times, and never in my BLS551. I've still spent less on the Savox, but I've also DNF'd 3 times from the broken gears. I'm now running servo savers all the time, and haven't noticed any perf difference.
Korey Harbke told me that one plastic gear in the is actually a good thing, as it smooths out the servo's action a bit. I don't know if it has anything to do with why the Savox gears have broken and the BLS551's haven't, despite many similar crashes on both. That may have more to do with the quality/design of the metal gears themselves.
In any case... I'd vote for running a servo saver. I've run many packs and had many board taps/crashes with no saver, and no broken servo. But it really sucks when you're leading a main and have one silly little board brush or get roughed up a little by a backmarker, and that little incident is the one that pushes it over the edge and results in a DNF.