To better increase aim accuracy, perhaps it would be beneficial to reassign guns to my throttle. I recall Hitech giving that advice years ago but it didn't make sense until now.
A while ago I got a VKB Gladiator and noticed the buttons are quite stiff on it, including the trigger.
My old X52, I never particularly noticed an issue with gunnery using the trigger because it was a very light spring. Moving to the VKB, I noticed a substantial improvement with my accuracy moving fire all to my throttle.
YMMV of course, and I'm sure I could figure out some kind of technique on the trigger to minimize it. However, the same as I could also use a twisty instead of my rudder pedals, I'd just rather use the thing that gets results.
I'm a big believer in it.
Wiley.