Holy smokes, a sound blimp! I never heard of such a thing....!
I have a Pelican case but can't bring myself to drill holes in it although having a very cool Pelican pinhole camera would be uber cool.
I suspect you're right Francois about the ratchet keeping the film from spooling backwards...but I thought if I could easily get in there, I could possibly replace whatever it is making the sound with something less noisy and still maintain the integrity of the Diana.
This all sounds silly to me now, mentioning integrity in the same sentence with a plastic Diana...what am I thinking?!?!?
Oh well, I'll probably just leave it alone for now. It has the sweetest sweet spot of any camera I have so can't really bear the thought of wrecking it.
Thanks for all the tips though...and who knows, an easy solution may still present itself.