Get a Mark Parnes static balancer. It'll match any spinner out there, I'd bet.
I just changed my rear tire last night. I stick a couple 1/2 hex keys in the front axle and stand it on a couple jackstands. Then you can lift the rear with a jack under your muffler. (If it's not a stock muffler, be VERY careful doing this.) The Sportmax I had on the Uly lasted just under 5k miles and 4k of that was after I plugged it from the outside. No issues. (It was down to the cords.) I will say that changing a 55 series tire is a two-person job if you do it by hand, though. My wife had to help hold the spoons in order to get the new one on the rim.