IMHO, a SANWA JLF with an over-sized actuator (so far, I've only tried the Paradise Arcade 0.5 mm Red Aluminum that's no longer in stock) feels as good as a SUZO, but is also more accurate, as the SUZO doesn't properly center the shaft due to an annoying gap of 0.5 mm. Also, the microswitches' fixation isn't 100%.
I've bought a KOWAL actuator too, but as I rarely have time to play anymore, I've yet to install it. Mounting a SANWA is much easier than the SUZO too.
I've been wanting to make the JLFs in my cab play shmups better, but the oversized actuator doesn't play well with the optical switches.
You've got me wanting to undo all the work I've put into them now.

(I even bought a pair of Suzo 500s to use if I ever built a dedicated shmup cab)
I guess part of the problem could be that I do have fairly large hands, which might be another reason why I prefer the feel of the Suzu.
I'm wondering if replacing the Balltop on the JLF with a Bat Handle would help?
The bat tops are pretty small and since my hands are used to regular size bat tops, I think it makes them feel even smaller.
I ended up using hand candy balltops from groovygamegear. They are 36.51mm in diameter which isn't any larger, but the lack of seams or mold marks on them is great.
If there were a slightly oversized version, I'd have bought it.
After switching to the Japanese style sticks, my style of play has changed from holding the joystick and moving my arm to ---> resting my hand on the CP and moving the joystick with my fingers and thumb.