I had my second stall at 2400 miles yesterday (first was around 400 miles). I was completely stopped at a light and wanted to take off quickly because I was lane splitting and wanted to get ahead of the cagers. While waiting, I revved the engine slightly (with my foot on the back brake) every few seconds. This is something I started doing after the last stall in the hopes it would fix the problem.
When I rolled on the throttle to go, it just died. Fortunately, it started right up.
It's still running the tank of gas with fuel cleaner added (Red Line, about 1/4 tank left) and has been running smoothly.
The only consistent variable between the two stalls is that it happened within a few minutes of starting out (2 miles the first time and 0.6 mile the second time). And, if I remember correctly, I pushed it pretty hard at the beginning of the ride by accelerating up hill.
At least this time, I wasn't confused about what happened. I just calmly started it up, put it into drive, and went on my way. But it was still annoying that the cars around me thought I was some noob that doesn't know how to control the clutch!