Clutch safety switch trouble
There is a switch under the clutch lever assembly that has a plunger which is tensioned by a spring. Normally, pulling the clutch lever lets the plunger out, which makes contact in the switch and lets you start the bike in gear. My switch appears to have failed, as I cannot start the bike in gear with the clutch lever pulled, but I can start the bike in neutral.
I further troubleshot the issue by disconnecting the switch leads and shorting them, which allowed the bike to start in gear. On possibly related issue is that I'm using Pazzo levers, not the stockers, and if that causes excessive contact wear so early in the bike's life (~5k miles and a year old) that others have experienced I'd like to know so I don't order a new switch every year. Then again, it's only an $18 part (#27010).