[BerntR]

With the tour striker you are forced to hit down on the ball or else... You get some of the same from an old fasioned blade. They have the COG higher on the face than most modern clubs and the sweet spot is smaller. So they are much less forgiving on off center hits, flipping and a few other usual suspects. If you practice with those for a while, a modern forgiving set becomes very easy to play with.

In my case it was also a matter of wanting to try something flatter. Most clubs have too steep lie angle for me, and the ones I play have the flattest angles I could find. So I started to wonder: How will I respond to even flatter? As it turned out, my normal club are probably pretty close to perfect for me, although a degree or two flatter on some of them would possible make it easier to work the ball both ways.