In this TV segment we took a look at the changes in hammers over the years. If you are one of those who still prefer the wooden handle, take a look at the photo to see how to put the wedges in properly. Not too much pressure sidewise against the thin walls of the hammer. In fact the wedge in that direction is a wooden wedge. Then two metal wedges are put in at only a slight angle, which snugs up the handle in all directions but puts the pressure against the strong part of the hammer.
Make sure you get a hammer that has both the head and ears you want, and then one that is the right weight for both you and the job and finally a handle that feels comfortable to you. Then try working with it a bit as more and more companies are working on reducing the shock to your arm of hitting the nail. No-one can build a whole house with just one hammer.