Yeah, I think they copy popular mods simply because they are good at producing, and not designing. They're simply amazing at multiplying equipment at a high quality. Which is pretty smart, because modders will spend alot of time perfecting an idea a huge amount of people will want, and then only make enough for 1/10th of that group. They simply make it available for the remaining 9/10th's, and do it at a competitive price. (Which we should be doing here in the States, capitalism is all about competing for the consumer, the consumer should NOT have to stand up for the "poor companies"

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Infinite and HCigar do make small tweeks to original pieces, for instance they both don't put non-conductive metals on mods/atty's anymore, because why would you want brass instead of copper or silver (most of them have silver). They often improve on the little nuisances that the originals had, and usually aren't a carbon copy. They often come with bigger/wider contacts, although in the same form to function like the desired mechanical does. My favorite addition they've been doing lately is taking an authentic that will give you three small pieces of tube to screw together for whatever size you use, to save money/be resourceful, which loses conductivity, and gives you an unattractive seem. And they will make the mod into one solid seemless tube, and give you three individual sizes, I LOVE that. It show integrity, and that they aren't just trying to ride coattails.
But then again, although they clearly are capable of making their own devices, they choose to replicate the "rockstars", the one most desired fruits of labor from one manufacturers finished idea, and they make it available to ALL who want it, that's the awesome part to me. Again, if I LOVE the clone, I will DEFINITELY support the authentic, and get the original idea if it's that good. It's just some aren't that good. Let's all be honest and admit there hasn't been any "revolutionary" equipment recently. All mechanicals are a tube with a bottom button and 2 contacts, and all atty's are 3 posts, occasionally changed up to 4-5 posts, and all we're paying for until the next big thing is pre-drilled airholes, and pretty engravings.
I gladly bought the plume veil because they genuinely had a product that they put some real obvious effort into, and it's amazing, there still isn't a clone to compare yet.