If you're talking about the trinity glass cap dont waste your time, the trinity cap doesnt fit well on the velocity clone, broke my one the first time i tried putting it on
My whole take on the clone vs auth merch is that if people take the stance to shun clones they should do so without compromising, what i mean by this is that (and please correct me if im wrong) but a company like eh pro manufactures the authentic billow. Loved by many.... but the same company...
remember that there are a few factories who manufacture their own authentics but also clone other products, so your search should also include vendors who do not stock items from these manufacturers