Cando Theraputty, to be exact.
I'm always looking for ways to improve my shooting. My snubby convinced me that while my hands are strong, they're not strong enough. Fifty rounds through that little thing is still downright unpleasant. And the Speer Gold Dot Short Barrel +P ammo I use for carry? Ouch.
I've tried those hand strengtheners with springs and the rubber balls without much success. A physical therapist friend suggested I try the putty, so I ordered a set of four-ounce containers of six different resistances from extra-extra soft to extra firm. A four-ounce blob is just right for a small woman's hand, and I can work through all six stages in ascending order in about twenty minutes while watching TV.
Noticeable improvement was very quick. I still think I suck, but my standards for suckage have become much higher.