Hi, Rested Gal! I've given up on the Hybrid for now, so I am talking about my Quattro. And from your description about the tights
leg, obviously I had my fix
all wrong 
, so I hope someone can come up with a picture for me.
I started with the small Quattro and had a better leak rate, more around 34%, 35%, but it was just killing my nose bridge, so I switched to a medium. The medium is much more comfortable, but now my leak rate is more at 40% and above (and I'm getting the puffy eyes, I think more from the exhaust whoosing over when I sleep on my side than from leaks from the cushion because I paid much more attention to that part last night and kept feeling for air). So I may have to go back to the bruised nose bridge 'cause my aerophagia has also gotten almost unbearable, but I thought I'd like to try a couple more fixes first.
I tried the silicone ear plugs "snaked up" around the chin area where I've noticed the most leakage, but tonight I think I'll try going all the way around the mask. And also I read about someone making kind of a "gasket" the shape of the mask which I might try to fashion today. Like I said, obviously I had the panty hose thing wrong. I just had it kind of tied around the elbow ('cause neither my husband or I could get the elbow lose to try the Teflon tape and were worried we'd break it with more torque) and I had it tied low behind my neck since it seems to pull up from the chin.
Jeez, this is a lot of dinking just to get air, isn't it?

But I'll dink all I have to to get it right. I may just bring both sizes of the Quattro back to the DME and try the UMFF, which I'm pretty sure is the other full face mask they have on hand there. I've read about the other FF masks, but each has negative reviews, so it's hard to sort out what might work.
Peggy