Dan,
when you replaced the star springs,.did you stagger them 30* so the tabs are offset, or did you stack them? they should be staggered...
also
did you buy the new style nut with the springs?
the dual spring setup requires a different nut than the original, it must be used, as the original system was.spaced to use a single spring....
Murph sells them....
as for the neutral switch...
that is not an issue.
the only issue would be a sticky sidestand switch, or the switch at the clutch lever, both can be cleaned by shooting wd40 in them.
sidestand, stick the red snooter tube up inside the rubber boot, and spray a bunch, and manualy actuate the switch/stand... it should free up
remove the clutch lever switch, and spritz inside it and actuate it also...
both those switches can be temporarilly defeated by shorting the connections at the plugs on either, just for testing purposes.....