Most carpenters I know who use them have wrist pain or carpel tunnel. If you use the weight of the hammer to your benefit, I think a steel hammer is just a lot more quicker and easier to drive a nail, just simple physics. But the lighter hammer is so much easier on your joints. You have to swing a titanium hammer faster to get the same force as a steel one, so I think if you're a beginner, you may want to start with a steel one, because if you don't have much accuracy the extra speed is harder to control. I have two titanium hammers but I use my steel ones always. If you're in the market to buy a hammer, try to borrow one as they are expensive. I think everyone's different and the two hammers really are very different in feel.