I just picked up my PX-9 yesterday. I also have traction grips to put on it today.

Glad you like the feel of the new material. I've been installing the Instant Stipple overlays on most of the pistols in my personal collection. It's more aggressive than the regular rubber stuff we offer, but not so aggressive that it's uncomfortable to wear against skin. We do offer a version of the grip for M2.0 models, but they do not include the back strap cover. S&W uses a different polymer for the back straps on their M2.0 and Pro models, and the polymers tend to leach plasticizers, slowly dissolving the adhesive on the overlays. Rather than offering a product that is likely to fail, we omitted the back strap piece for the M2.0 overlay kits.