I don't feel that I'm exaggerating to say that the ZT+ was a bit "less dull" than the standard Grado Prestige fare in the SL-1200. When I installed the fluid damper, the ZT+ sounded as good, perhaps even better, than the ADC PSX-40, which is really hard to beat--sounds a lot like my Grace F-9E.
But, when I tried the fluid damper with my Prestige Blue, the effect of the fluid damper was not as dramatic. I'm not sure why, but it might be because the Prestige Blue is a P Mount in an 1/2" adapter. I'm not sure. But I do have a Prestige Green 1/2" that I have yet to try with the fluid damper. Once I get to it, I'll report back. The ZT+ sounds like a totally different cartridge after the fluid damper.
I even emailed Kevin at KAB to see if he'd have the inclination to develop a fluid damper for Technics P Mount turntables since Grado is the only manufacturer that I can think of that still markets a full line of P Mount cartridges. If only they didn't sound dull in the most popular brand of P Mount turntables, they'd get a lot more recommendations.