ok. It's just kind of hard to tell with Futaba. I've been sort of dormant with RC for a bout 5 years and only dabbled with cars at low level. I'd be coming from Spektrum where I have done a lot with planes and helicopters and a little with cars. I have a DX4S that is nine years old and is having a throttle dead-stick issue so for the short term, I bought a DX6C. However, I am interested in the high speed stuff.

With my helicopters, I used a DX18 and it's frame rate setting are clear:either 22ms or 11ms. Most of the servos were standards pulse width, 1500us and 200Hz frame rate I think used with my controllers except the tail servos with 760us and I'd run them at 333Hz. So I am trying to understand all the speeds and rates with Futaba and Sanwa. I guess the Futaba settings are in terms of their lettered names rather than actual frame rates?