I notice that when I try to Track mats required for a Recraft, I think I'm getting the mats shopping list for the original crafting of the item, instead of the mats needed to recraft the item.

I'll have another look at this, last time I did I could not figure out a way to make this work.
In a nutshell, PSL gets the info for the selected recipe and shows the reagents for that, whereas for recrafts this works very differently. Hopefully I can find some more concrete info about the recrafting order's reagents!

Okay this took a WHILE, but I've managed to fix it. I'll be testing it for a while longer to make sure before I release it, though. :)