Finally got the chance to attack this again. Just went straight with the 1/2" bit like everyone recommended, used some WD-40 as lube, and had no problems... thanks for the good advice. Took about 20 min each side but it's done now. Flipmeister stand mounted beautifully and I'm now ready to attack the wheel removal (time to change the tire) and swap out the rear shocks tomorrow. The bike balances on the stand toward the front tire about 60/40 if I had to guess, but I positioned a jackstand under the exhaust pipe mount just in case. The original Metzler is now down to the threads at ~6,800 miles, got a new Bridgestone Exedra Max as its replacement, and I'll be trying out some Triumph Comfort shocks I bought used off another member here.