I bought this thing 27 years ago, used it a bunch of times, I always re-read the enclosed directions and follow them to the letter. I used it on the front wheel of my vintage Commando, but the thing took a TON of weight I ran it all last season, it seemed to gallop pretty hard. I am suspect of it's accuracy, I just re-checked with the Dangle, it showed balanced... but when I used a conventional shaft style balancer, it needed way less weight, in a total different area. Does anyone else use one of these? Results? Comments?