I run a Futaba BLS 451 in my 410. Came secondhand at £25 and been in for well over 1 year now.
Savox - people either love them or hate them. I hate them.
They are (as mentioned) very power hungry. This can be resolved with a powercap on the receiver, or a proper servo can be bought from the outset. With space being as tight as it is in the 410 I'd go straight for a high quality unit.
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