Thanks for the tip.
We'll see how this goes, for now, I'm not concerned about how long it'll last, just wanted to try it given how divided opinions on this soap are, and this was the cheapest option. I've grated SV, D.R Harris and Haslinger refills in the past, and it's worked great with all of them.
I grind soaps that I can't get in puck form like Speick and Palmolive. They're both worth it to me and unavailable otherwise. For what the Tabac puck costs and the fact you don't have to mess around grinding it up, just wanted to throw my experience out there . Hope you like it!