I recently got the Harada Hold dvd from a friend, and am really intrigued by it. The problem is that I really don't like the vanishes/productions taught on the dvd... most of them look very unnatural to me. So, I was wondering if there were any other sources that taught sleights that utilize the harada hold?

You can contact Lawrens godon. He has some good work with this technique. His muscle pass to harada is awesome.
Now I'w working a combination of coin vanish from ponta the smith directly in harada hold.

You can adapt the technique to your retention, or your french drop....

Thanks for the reference. I contacted him and he'll be having three new applications for harada hold in his moneypulations DVD, along with all of that great back thumb work I've been wanting to see. Definitely on the top of my list when it comes out.