With the MoJo Lever I don't even need the block anymore, I can press enough with hands with it, even on really stiff tires/tyres. I also have NoMar spoon sets that work, but not as easy as the MoJo. I did have to learn how to use the MoJo and thought it was junk at first, but it was "my bad".
I have the No-Mar tire changer and the big No-Mar tire tools but rarely use them. Run the tire around using the bar and finish up with the Motion-Pro spoons. Have some 8" and some 11" (approx). The reason I like these is that they are very slim and you can take a smaller "bite" on the tire. They can get into smaller places than the big tire tools.
The Motion-Pro spoons are also excellent for other that Gold Wing tires, and a must for tube-type tires.