I purchased another set of the Blue Max belts.
I changed the tires on my bandsaw yesterday for the third time. I finally figured out how to do it. I did not heat the tire or any of that nonsense. I discovered that you have to keep the wheel from moving and hold the belt in place. I have tried every sort of clamp you can imagine, only to have them pop off and go flying across the shop.
It finally dawned on me to try hand screw clamps. Hand screws are made of wood, so no worries about damaging the wheel. You can apply a lot of pressure with these clamps. Not only did they hold the belt very well, but I managed to stretch the tire onto the wheel the first try.
I used spring clamps on the bottom wheel to stop the wheel from moving when I pulled down on the tire. I didn't do this on the top wheel, and it was a bit more complicated.