It is by far the best CW for Screw, and definitely something I'd consider worth mentioning, though I may be biased: I was the person who stumbled on the fact the two worked so well together. No other CW exposes the slopes so well, Pisces has an extremely low profile at the edge of the beyblade, and as such barley interferes with Screw's slopes at all, maximising the Metal-on-Metal contact it is capable of.
Horogium and Uranus are probably the next two best options, horogium is slightly thicker and Uranus is only useful because it's so small in diameter, but yeah, Pisces is the best. Definitely something I think is worth mentioning given there's really nothing else to mention about it.