If the new ones are skinny as hell, cored, and flat spotting fast then they're probably from China. They look like the same $10 wheels you can buy unbranded from a thousand amazon sellers or TGM. In my experience they're not very good, but they're fine for rolling around a smooth park.
For those who didn't like the CU ones, you have to wear the grooves off. It's like the gloss on NFGs, the wheel really changes once it's smooth and as long as you're over 101a they should slide almost as well as an F4 in terms of power slides or sliding through bad landings. They're a little stickier on the curb/ledge but I haven't had anything a quick waxing wouldn't fix. I've got whatever the 51mm glow ones are called and quite like them, same as speedlab, jivaro, Dialtone, and the half dozen other CU wheels I skate.