It's been clearly established that Craftsmanship and Magic Craftsmanship are profoundly different - wearing full craftsmanship gear and attempting a magic-based synthesis will make it extremely difficult.

As far as I know, the only way to tell which craft is which requirement is to gear yourself up different and try the same synth enough times to get a good sample of progress to durability reduction rates.

I think it would benefit the players greatly to have some small indicator which type of craft you're working with - be it a sound clue (such as a distinctive explosion on failed attempts that works as a clue you're doing it wrong) or a visual clue (Perhaps the stable color of a Craftsmanship synthesis would be white, and the stable color of a magic green). Just some indicator would be greatly appreciated.

NOTE: As always, apologies if there is a mechanic in place for this aside from rigorously studying the numerical values in different gear; correct my oversignt if this is the case.