Hard to find neutral is normal but fixable depending on how much it bothers you, any significant clutch drag and it gets impossible at a standstill, the springs in clutches can be adjusted to reduce drag, by getting the pressure plate to lift dead evenly (I use a dial gauge), but worn parts eg notches in the basket can also cause clutch drag.
The fact you are getting a bit of gear crunching (which is not normal, assuming you are blipping the throttle when changing down) may also indicate a clutch drag problem, but maybe change the primary oil to ATF or sae 30 before stripping it down.
Let me know if you find that petrol tap screw, I had the exactly the same problem years ago, and still haven't fixed it
I just don't use reserve.....
If the speedo cable is not at fault you can at least clean a chronometric yourself and often oil getting inside from the cable causes problems solved by cleaning .....but you would have to be brave to give it a go...there are some guides on fixing them on the net. Getting the bezel off can be a challenge though
I swap back and forth from my street triple and a10, they are so different I don't usually stuff up the gears, except when I'm tired