Looking at my trusty Futaba Challenger 6 channel the other day I noticed, (after about 15years of ownership), that the up/down stick on the left did not go as far as the right one.
Back off and have a look. The left one had stops fitted which he right didn't so I unscrewed the them and now have same throw on each stick.
Today at the lake I found that full speed on the left stick now cuts out the motor, back just a bit and full speed's OK.
Anyone know why one side has the stops and the other hasn't. I've had the TX from new so it came like that from the factory.
Anyway back off again and I'll replace them.