SimonTheBeetle: Right on! Keep us posted, Robert.
Well, I played a few rounds with the RSi2 irons and the level 90 Nike balls (black). There's no doubt in my mind that with more playing time with them and with a little more talent than I have the RSi2 irons are superior to the Nike Vapor irons.
But here's the thing, I can score well enough with the Vapor irons and the Level 81 Nike balls. In fact, I still prefer the meter speed of that combination of ball + irons to any other combination, including the RSi2 irons + level 90 Nike balls. The meter on the Vapor irons is extremely smooth on the iPad. Additionally, the meter of the Vapor irons match my driver and 3 wood.
For me, I just don't see myself scoring any better with the RSi2 irons, regardless of the ball they're paired with. But let me be clear: that's my experience. I guess I have just become very comfortable with the Vapor irons, and I think I can get to Tour Legend with that combination. It'll probably take me a little over a year or so to get there, but I'm in no hurry.
I don't know if that helps. I hope it does.