Thanks guys
D/R on the forward/reverse gives you a much finer-grained control on the stick.
With D/R the full stick movement means only half (or so) of the speed, so it makes finely-controlled driving easier.
This obviously requires motors that are strong enough with the lower voltages. But if you have that, it's almost like a second gear. Well. Almost.
I hope it's just a setting problem and I can get it back to work and maybe even get it to work better than before.
Hope this makes sense?
Cheers
Jens