Great detailed explanation and great work with your experimenting with de-crystallizing bro.
The Mast (in fact all of it) is still good to go if you want to warm it up before each pin until it falls out of solution again. It would be a hassle but this way you're not tossing perfectly good gear.
Not recommended but I've even microwaved mine at 15 second intervals until it's g2g and pinned.
Important to put the 18g needle tip in the top of the vial too when you immerse it in the hot water.
As always
@US-pharmacies did take care of their customer and I'm happy to read about the patience you've had with them. Good stuff