I remember watching some kind of How Its Made show one time and they were talking about nuts and bolts. After X amount of them being made the machines need to be recalibrated or the nuts and bolts aren't at the correct tolerances that they require. So I figure it's the same story with the clones. Though a slight variance with these doesn't matter enough to the manufacturer to recalibrated the machines. I will say the
threads are excellent everything screws together very smoothly. The switch did need a drop of oil but that's fine.
Not that I'm complaining about Infinity. I paid what I consider to be a really cheap price for what I got and how it works. Who knows what the seller paid. Along with shipping from china, ebay fees, then shipping to me, he had to make some kind of profit in there somewhere so I feel my $39 was well spent for what I have.
On a side note I tried tiny amount Noalox on the switch post, but it's paste and made the switch stick for a second or two in the on position and not release right away. The oil has worked better.