RE: Thumbs or fingers?
K3 I started switching on the sim I rested the handle of the controller on my desk, My first few pinch flights were with my trainer so If I had a problem I had some time to react or change back. No neckstrap my first few times (I didn't have one for my Airtronics controller)
now I use the neckstrap that came with my new TX and I am building a transmitter tray.