Zoom brand clutches

Who knows what about them?
I found (judging by pix of the packaging) quite an old zoom clutch, appears to be stock replacement, it's a 3 fingers type not a diaphragm.
Of what I know of them, they and "perfection" are the same. Was this always the case?
The last 2 "perfection" brand clutches I installed were quite far from their name, besides being made in China which I want to avoid in any case.
About 8-10 years ago I converted a club cab 318 Dakota to a stick, using an NV3500.
I went to the parts store and got a clutch kit and it was a "perfection". Within a few thousand miles I was pulling it out again as the throw out bearing went bad. I exchanged it, I had to exchange the whole clutch kit just for a bad throw out bearing.
Another couple thousand miles goes by lather rinse repeat. I went back to the parts store and begged them to get me some other brand because I wasn't going thru this again with that truck. They refused me, saying that was "all they could get" they their sources. So I got my money back and the 3rd clutch I installed was a Luk. I drove that truck another 70k til I wrecked it and never had a minutes problem with the Luk clutch.
The problem with both "perfection" clutches was to do with the throw out bearing, the sleeve that hooked to the fork was plastic/ something I thought I'd never see. Both screeched like a scalded cat after very few thousand miles.
It seems that zoom clutch (in name anyway) is one that has been around forever, much like Hays, McLeod etc. Does anyone here know anything about "old school" zoom clutches?