HDR Question (strictly a query from HDR users, not a debate)

This question is *only* meant for people like Professor, Einstein, HDRKid, etc who know about the HDR inside out and is not a debate on whether HDR really works

Now my question, the double terminated crystal that Gibbs had sent to me is no where to be found, so I'm assuming I've misplaced it beyond retrieval. If I run the HDR without the crystal, what would be the impact or would it not work (as intended). How about using a crystal/glass looking Prizm shaped Pendulum?

Thanks!