Very good post! I concur, same feeling here.
the gears are amazing in spirited riding with throttle open and revving 6-8,000.....then in traffic...clunky and exactly same feel as what oyu describe.
The way I found to mitigate it is by pulling the clutch handle only slightly (1inch?), shift gear, open throttle gradually smoothly, and release clutch... then it goes smooth. If I pull the clutch handle all the way and then release, then it is likely to do the hangin stuff
If I release the clutch handle quickly....well, it doesn't jerk immediately...it hangs...then jerks...like if th ecable got caught for a sec.