I have experienced the Wobble. I bought two new offshore made spools for my Hardy Marquis Salmon reels. When we tried to put backing on using a motorized line winder, both spools vibrated and chattered so badly we had to stop. It was a shock, actually. So why? We had a careful look at the new spools and compared them to the vintage spools in my Spey bag. On the Marquis, the spool is held onto the grooved reel spindle by the spring latch on the spool. There is a brass bushing at the other end of the spool that seats itself on a wee shelf at the base of the spindle. The result is a good tight fit of the spool on the spindle with no slop or play – even on my reels, which are old and well-used. The offshore spools don’t have a bushing. If the machining is perfect, no bushing would be required, I suppose. That is one big “IF”. My two new spools had an enormous amount of play on all of my reels, which explains the vibrating. I contacted Hardy in the U.S. because Hardy Canada is gone. The result pleased me. I returned the two offshore reels to the U.S. office and two “Made in England” spools were sent to me at no charge from the Hardy factory in Alnwick. The spools that I received were new old stock, complete with brass bushings! They fit perfectly. Hardy has put themselves in a bind by closing down in the U.K., putting old Tom and his mates with their old brown shop coats and fifty year old tools out of work. They have shifted off to Korea where old Tom has been replaced by computers and lasers and automatic milling machines and the occasional chap in a white lab coat with a clipboard, and they can’t get it right. And Hardy has flooded the market with all of these new reels, touting their new technology. Wouldn’t take one of these offshore reels as a gift!