Thanks for the input. I actually found the owner on FB. Nice guy. Answered all my questions. I was concerned about sizing also. What it comes down to is that on the smallest one you have to put the clamp through the triangle part. The others have a lip for the clamp to go on the outside of the triangle. As for diameter differences in motors he said the metal part that hugs the motor is smaller gauge than the protective portion. When the clamps tightened it form fits itself to whatever diameter the motor is.
He also said that a promo is going to be launched around mid September on Amazon because the store site is new. He didn't say exactly what it was going to be but said it would be significant since he needs reviews and feedback. I will keep everyone posted when I find out what it will actually be although I already bought mine...