Yah I couldn't comment on the B, but GHS pressurewounds are great. Jason from bassstringsonline likes the Ken Smith pressurewounds. If that's his preference and he has easy access to every bass string on the planet, they must be very good strings.
Logically, strings called "slickrounds" do sound like they'd be pressurewounds, especially considering every halfround I've played was sticky and awful. But "compressors" works too since they are indeed compressed.