Copies of the original ....
I would question what that means ..
As far I remember... the wand was originally a joint venture between tom Conway and Tony dang .... it was to be called the devpro.
It was to made in the states .
Due to some falling out over the deal .... Tony dang siezed the opportunity to go it alone ....and had the parts like the alloy head made in his native Singapore so he could get it out at a reasonable price .
Since then ...there is had being a campaign on the likes of mikey board to call tonys wand a knock off... a cheap copy etc . And of course the fact that its parts were not made in the USA by a white American was a red rag to the often racist proud boy types that are all too common in USA carpet cleaning boards...
So tom Conway made his own wand .... im sure its great but he can't get the price down to the dang wand .
You won't find any issues generally reported with any version of the dang wands though from those that have bought them .