My major objection is that (at least when I checked last time) it is pretty much impossible to get a sample. The vendor sells only and exclusively to big brands.
There should be a DIY variant and/or a knockoff Chinese producer. I’m willing to give the original vendor my money, if they wouldn’t ask for an excessive amount, but if they don’t want to sell me a small piece, they deserve all the knockoffs the market can bear and then some.
