I pounded nails for 12 years too. The Estwing hammer was the worst one for my hands. I found if I used a wooden handled hammer, no problems. Try it. I still use a 26oz hammer, with a good straight claw, but a long wooden handle. Made a world of difference for me. I drive a hand full of nails with an estwing and my hand is killing me almost instantly.If I use one all day, my hand falls asleep at night, and keeps me up.
I don't miss framing one bit these days!
Sinker