Trick is to use both sticks at the same time.. rather than simply adjusting one bar at a time. This allows for much greater level control, and less moments where you lose all hope of recovery.
Given the option would you opt for a different control scheme then? A pair of analog pots? Analog joysticks?
Nah. The controls work just fine. Any delay or burst of feed thats a little too much... is what creates the challenge.
Improving response time to the joystick in general, without changing the type, would make the game better.
The sticks are 2way leaf based, and are thus adjustable. The main issue with these, is that the sticks assemblies have often
worn down to the point where theres slop. (bushing wear) This cases most of the controller issues.
The next problen, is dust / dirt. When the games that old, theres like 20 yrs worth of crud in all the assemblies. All the ball trails
in the rear have to be taken apart & cleaned. Front field cleaned & polished with some nice F21. Roller bar often needs to be re-built...
as the bar breaks free or gets too loose from it holding mounts. The bar itself may be worn & pitted. Replace the scratched up ball too.
The biggest problem is usually the belts. They get brittle & break. Or they slip. I replaced mine with winsheild washer tubing, as recommended by others. Cleaned the belt rollers as well.
But as far as control, thats mostly to do with the motor / gearing assemblies. (not the sticks) Its a bit coarse: Fast and jerky. Taskes
finesse to use tiny taps to get past tough areas. But thats part of the games challenge. If it were too easy to control,
there wouldnt be any challenge at all.