After using an Acoms Stick controller today on a friends rig, having used nothing but Spektrum for over a year, the Acoms was a night and day difference.
With the acoms, Less response, less accuracy, less range and a nervousness of a runaway all came rushing back to when i first picked up an r/c radio. I must admit though, i was grinning from ear to ear in a way i have not done since i first started, but.....
CHANGE THE RADIO !!!!
you'll get more of a feel for the rig from the throttle to the steering, you will find a lil' more confidence in your driving as you become "as one" with the controller.
You will find you never have to look at what your hands are doing either, spektrum / 2.4ghz radio's become truly instinctive to the point that you will yank the throttle in, turn the wheel and your having fun without thinking about what your doing. You will also find you spend more time enjoying your driving skills cos you will be watching your rig a LOT more.............
Even the alignment trim can be set without looking after only a short time.