30W may take a number of extra passes. I think the tradeoff would make you more happy in the end.
I’m just suggesting that you might want to anneal metal with a black mark for knives, can openers, tools and many other things.
This is one of the brass coins from Amazon, I lased the area around the cat, but did an annealing to make it black… can’t anneal then doing this probably won’t be possible…
It’s your money, I’m just trying to pass what I have learned… Main reason I got the JPT M7 model, was annealing without having to damage the material… My knives are marked… need to anneal to avoid damaging the knife…
I sincerely doubt that a 30W wouldn’t be as fast as a 50W for tumblers. You can anneal stainless tumblers without coatings… more types you can use/sell
…
You can theoretically do plastic mugs/cups with the jpt, like the plastic magazines for firearms.
Touch choices…
Good luck
