The Lab Series from Storm is going to be precise ball motions and countless hours of R&D and it completely shows with the all new Level. Featuring the RPM (Regenerative Polymer Matrix) Solid cover and the Equalizer AI core, that has an RG of 2.59 and diff of 0.027. I drilled mine 4 x 1 and this ball is very very special. It starts up as quick as urethane but continues more in the back similar reactive resin. Ive throw this ball for quite some time now and I would say this will be either a ball to start the block with or to use just urethane to create more shape down lane. If you aren’t a fan of urethane or struggle to shape it down lane, then the Level is the perfect ball for you.