This is my hammer and tip of choice! It is the NEW 12" SHARK Piano Tuning Hammer with Coleman 20 degree head and Watanabe #2 Star Tip.
This 12" inch SHARK model is the most stable and easiest to use hammer I have ever picked up. It has ZERO flex even though is is longer than traditional hammers. You get the leverage and precision you need to minimize wear and tear on your shoulder, arm and back and you can feel ever movement of the pin so you can set pins super fast!
Note: You can use other heads and tips with this hammer including the schaff heads and tips.