According to their information, the Savox 1357 is plastic geared...
I appreciate this will most probably fall on deaf ears, but if you have a pan car then only consider the Futaba mini servos for top-level performance proven over many years. The Hitec servos will eventually suffer from centering problems, and all the others have given up the ghost long before a Futaba is properly run in.
Having said that, the Savox servo hasn't been around long enough to see how it performs in the long term, so there might yet be one other servo to join the elite. As any survey of any 12th or GT10 National will clearly show, the best choice is the Futaba - with barely a Savox in sight.
It might be expensive, but it will last 20 years without a visit to the service shop, and because they are so good they have a good resale value if you decide to stop racing pan cars. If you want to beat the best, it's a Futaba 9602 or 9650. It's no coincidence that these are the servos heli pilots trust for their tail rotors... HTH
