I see my eagerness is evident in my posts...
Short of getting a single-stage diaphragm (which I eventually might), I've got a feeling my Mistral is in for a rude awakening:
Mistral: Hey, where'd my diaphragm go?
Me: Don't worry, here's another one...
Mistral: Gee, thanks! Hey... what are these tabs on my diaphragm for?
Now for a totally inane question: If the Royal Aquamaster is the RAM, and the Phoenix Royal Aquamaster is PRAM, what's the Phoenix HPR Royal going to be? (PHRAM?)