I'm still learning to fly, but they day is not over until i crash! LOL! Ive lost 2 plastic servo's due to crash. If i get metal gear servo's will this stop this when i crash? or at least take some more abuse? When i say crash i don't mean destroyed, just a good hit nose first (scratch built wing)
Plastic geared servos usually strip teeth on one of the gears - the weakest of course ... and the replacement gear sets supply all gears - so most is wasted.
I prefer plastic gear servos for most use as then I know I will usually strip a gear before doing more damage.
The plastic gear in a metal gear train - is as I'm told for 2 reasons ... a) to provide discontinuity of electrical and gear noise and b) to have a weak gear to save servo from internal damage.
There are metal gear servos of course that have complete metal trains ...
Areas where I prefer a metal gear servo :
Combined Rudder + Nose wheel steering use.
Helicopter tail rotor servo.
All other servos - I can use plastic by careful choice of which ones ...
Plumber ... the servos you have now - check to see if you can get gear sets for them ... and replace stripped gear - put aside for use ..