Mickey Thompson Tires "Suck"

I have used Mickey T's for years and have had the same problems you are expressing. I found that pretty much all the different manufacturers have the same problem. Lotsa weight and the casing seems to move around a lot when you view it on the balancer. Drag radial and radial slicks dont have these same problems. I have never had a set of sticky bias ply tires seal at the bead.