I've done it! New tires are mounted and balanced, reinstalled on the bike and feel great!
The HF changer worked great once I got the MoJo blocks (great investment) and the MoJo Lever is absolutely essential! Without the MoJo lever you might as well forget even trying, you'll destroy your rim lips. The MoJo lever didn't leave a single mark on either rim and this was my first time using it! Tires came off the rims in about 2 min each and the only slight issue I had was in mounting the second bead on the front tire...but it works great with this setup with minimal effort!
Some tips I'll give:
1. Keep the tire lube at hand as you mount and demount.
2. Buy the Mojo Lever and Mojo blocks!
The Mojolever
3. Having a helper to hold the rim from trying to spin as you mount the beads of the new tires is important if you want this to go easy.
4. Get yourself a good static wheel balancer from
Yamaha Motorcycle Wheel Balancer
5. When reinstalling your wheels back on the bike don't forget alignment! I use the string method to keep the rear wheel in line with the front. The little tick marks in the axel adjusters aren't accurate unless you have a very lucky bike that is perfectly true from rear swingarm to triple tree!