I use my IM Vacchetta a lot and so far no fraying anywhere, though I do shuffle the deck gently...not that I understand what it is saying most of the time, I just sort of go on intuition and try to use fewer cards, as that seems to help diminish confusion.
Kwaw made some comments about it that were eye opening regarding the courts in the Vacchetta... he said they were Biblical characters, though I cannot recall their names specifically...maybe he will see this post and comment. So, that could help in terms of interpreting the cards, knowing who the courts may have been depicting.
I find the suit of swords to be the most confusing of the bunch, as the ribbons and other decorative doodads all through the suit cause me to see each one of them in such a positive light. Although the 3 swords seems to have a negative connotation.