A few more things:
The hidden gene in the woma is not the same as the hidden gene in the platinum. A few years ago NERD was selling lessers that were hidden gene (from the woma/soulsucker) carriers. If the hidden gene from the platinum was involved, the lesser couldn't carry it. With that gene, a snake can be a lesser, or a hidden gene carrier, if both genes are present it would be a visual platinum.
The hidden gene in the woma or platinum lines isn't the same as what makes the crystals. BHB has produced snakes that look very similar to crystal using lessers. Here's a pic, from EBN's site again.
http://www.exoticsbynature.com/daytona06/bhb4.jpg
Also, Tom Baker produced a super of the morph that makes crystals when bred to a mojave. RDR produced I think 40+ eggs from hiden gene carrier to hidden gene carrier breedings and didn't get any visual morphs.