It'll have a little more launch and a little more spin, compared to the .2's. If you check out the chart: http://media.titleist.com/images/titleist/pdfs/US/2013/2013_Custom_Options_Book_US/html/index.html#4 you can compare it to other mid launch/mid spin, shafts. It's a SWEET shaft. I love the 7.2 to death. Nothing at all bad about it. However, the 7.3, in my opinion, will have a little more "feel" and easier to load to most people. 

Unfortunately, I haven't been able to hit the shaft since they are in pretty short supply to fitters. I've heard different things from several people. Some say it's just slightly higher launching and spinning than the 7.2, while others say it's mid launch/mid spin. You seem to be in the mid/mid camp. What shaft would you compare the 7.3 too in terms of launch/spin?

I prefer different shafts for different clubs. Hmmm...I hit both in an X flex, so, taking that into consideration, I can honestly say that the 7.3 rivals the Tour Ad Di 6. That's my personal opinion though. Everybody's going to say this and that about their results with the shaft. For me, having hit the 7.2 Tour, I could definitely tell that the 7.3 was "higher" launching and had a couple hundred more RPM's. So, there was a very noticeable difference.