I am trying to remember what I read about the Pearl cymbals in the
Cymbal Book , as I remember they started offering mid level and pro series in the eighties, some series names had numbers like cz-500,700 etc and a series called Wild.I think they discontinued marketing these series by the nineties.
I think they offered cymbals in both B-20 and B-8.
Some of them sounded like dinner plates ,some like trash can lids,and a few were really nice,I sat in at a friends gig and their drummer had a 20" ride,looked like B-20 to me,he found it in a pawn shop in the late 90's,and it sounded great,I thought it sounded like a cross between a Zildjian and a Paiste,a nice crystaline
ping like a paiste but with some trash like a Zil,with a really nice bell. I had not thought about that cymbal in years until I read this thread,and since then I have aquired a UFIP class 20' ride,and now that I think about it the pearl sounded a lot like it,makes me wonder if Pearl consigned UFIP to make them for them,UFIP has always made a lot of stencil cymbals I have heard,and I imagine tooling up and hiring Labor to make cymbals would be pretty expensive,even if you outsourced blanks.
Hope this helps,I am sure someone on here will post with more solid info.