Centramatic Wheel Balancers

[tmf6902]

Does anyone have these?  They are supposed to eliminate the bounce and stuff of tires.  Their called  Centramatic Wheel Balancers.  I was just curious if they work or not, they run around 300 bucks and before I shell out for something like that I want to see what's up.  Anyway I have an obnoxious shake when I drive betweek 45-55, not to bad but just enough to be annoying.  But then again their brand new 35's.

 

thanks

TMF