When it comes to a Mech mod, I would be especially careful to research the specific clone you are considering. Thing like springs, adjustment rings, magnet strength, and insulators can cause catastrophic failure and a very unsafe mod.
In some occasions the clone is superior, in others the clone is a total dud. In rare occasions the clones “fix” a problem the original had. In most cases; however, you get an inferior product that will give you a good concept on how the authentic performs.
Bottom line is, ask around for people that have the same clone from the same cloner, you want and decide from there. Each clone company makes their clones to a different standard. Think of it this way: there is a reason for a 100$ authentic to become a 15$ clone. It’s true capitalism, and the mod company, vendor and courier still needs to make money. Someone is cutting corners to make that money.