Roto Grip brings back the Nucleus weight block from the Cell series and creates the X-Cell with the eTrax Ultra Coverstock. As I say in the video, compared to the Gem, X-Cell will be more useful longer into the block. Gem is very strong overall which is why it was very limited in where you could use it. The X-Cell brings a similar vibe with the core number still being a bit lower but packs more punch downlane with the kicked up diff number. I’ve liked this ball so far, when I’ve been able to use it because it still is a hook monster. I could use it like an RST X-1 which is one of my favorite releases of all time. I’ll probably be drilling up another X-Cell to complement this one.