Hi Roger,
Not sure which Flysky you were considering, but I have the Flysky FS-i6X and get on OK with it. Here’s the basics:
6 channels – can be upgraded to 10 with a free firmware update (some come with it already installed). The cable to do the update came with mine but may not come with all of them.
Firmware update cable can also be used to connect transmitter to PC flight simulators that support it.
Comes by default with ratchet throttle. A self centering kit is available which I fitted to mine
The instruction manual is not the best. If you want to more than basic setup (differential thrust mixing for example) your best bet is youtube videos.
The first 4 channels are on the usual sticks, the others can be assigned to 2 variables, 3 two position switches and 1 three position switch.
I recently discovered that if you select the right 2 receivers, you can assign them both to 1 model at the same time. Control landing craft and landed vehicle without changing transmitters maybe? I can check which 2 receivers worked together if anyone interested.
By the way, you may need to change all your receivers if you change transmitter brand.
Hope that helps
Dave