Roto Grip’s RST X-2 uses the same asymmetrical Roto Star Tour core design as the RST X-1. The X-2 uses the new eTrax PLUS Pearl coverstock, which we found to be a game-changer in the skid/flip category. This cover digs into the oil even more than the eTrax Hybrid cover on the UFO Alert, while […] Roto Grip RST X-2 appeared first in Bowling This Month.
Source: https://www.bowlingthismonth.com/bowlin ... p-rst-x-2/