I'm playing with glitter flake for the first time and working on a design for a customer who wants an Edwardian script on a tank. It looks INCREDIBLE, but the finer details crack when worn because of "the twins." It is only in the finest lines. I'm hoping that if I just increase the width of the lines I'll get better durability. Is there a minimum width I need to use, or are tanks pretty hopeless since they are all very stretchy and tend to be worn snug?