I previously asked about ruining ace servos on a Raptor e550 heli. I bought 3 3071 futaba servos for cyclic as replacements.These are digital sbus metal geared servos. They are a relatively new product. I can't find data in your servo database nor on the net. Are there safe pulse and frequency settings that will not destroy these new servos?

I am afraid, but from datasheet these servos are not designed for FBL unit as well.
They are really very slow and there is no coreless motor.
So even with these you can run 50-60 Hz. So resulting performance will be unfortunately noticeably affected. So that even beginner can distinguish clearly difference.

If there is even tiny possibility, I highly recommend to return them.
Then before buying new I recommend to ask what servos will work well.

You can get even cheaper servos that will work significantly better than these. But if you have enough money, then it can work well and last long.

Todays servos are few times faster and stronger than these.

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Spirit System developer

Please give me a recommendation for a futaba servo and another brand that will be suitable