I don't have all of them yet, but working towards collecting the whole set. I don't have the P90 yet. What I've done with my carry P345 was wrap the grip in hockey stick tape, and then rubberized it. Before the rubber was fully hardened I wrapped my hand around it to "customize" my grip. Worked out very well for a first try. Makes the grip a bit bigger and contured to fit my hand. Just a thought if you want to do something different. I do plan to do it again. My rubber dip was pretty old and not quite "fresh". Congrats on the Ruger.
I like all the Ruger P series. I had a p90dc once. Very reliable. I sold it and bought a p95. Personally I just prefer 9mm. Shoots great but you can't change grips is the only drawback. Rugers are great guns for the money.