It can be done, but you gotta get the clutch out right quick, so that it can't kill you. Certainly not throwing it, but getting rid of it really quick. So you're sorta doing it backwards- instead of locking the throttle on the green and giving it some clutch all the way out, you're getting the clutch out right off the line, and using the throttle to get it going. Which means that you gotta launch from a pretty low rpm.
I used to do it with a stock clutch at about 2500 rpm, all out within about five feet, while simultaneously screwing the throttle fully open. If I got it right, the engine didn't bog and cause a wheelie. I was getting high 1.5X 60' times at a ride height probably 5" higher than the OP's, and with 5/8" less wheelbase than stock. Of course, my bike weighed 475 pounds and had Marvic magnesium racing wheels, but I weigh 200 pounds geared up.
But I gotta tell you, it was harder to get it right than any bike I've ever ridden. Much harder than launching my 55" long stock+ height R1 from 8000 rpms (low 1.6X short times, probably with the rear tire). Neither bike was strapped.
If you're going to be drag racing, you should probably have a 1-piece clutch hub, for safety and consistency.
