Just a note on the adhesive powder.
I often wait and apply it to the transfers after their partial cure. The ink is still plenty tacky for it to stick, and fewer mishaps than handling the wet ink.
I got not problems with it wet, just don't print with the runnier inks if at all possible, use something with good body to it.
Transfers over the zip? I'd rather direct print, more adhesion, just as much total setup I'd wager.
