Skip HopStop

I was planning to try a RD but in a SR flex. I have no experience with Crazy shafts, but here are a couple questions. My normal SS is 92-94. If I go at it harder it blocks right. I launch pretty high and am a high spin player with irons but dont have any driver spin numbers. I'm sure it's the swing, not the shaft/club! The best I can determine, the stiff is going to be too strong for my swing. ..... But it's sure easier trying with a used price! Any advice will be greatly appreciated. Thanks!

How would this unit compare to "SwingSmart" ? I was getting ready to buy the SwingSmart until I saw this. There seems to be some respected spokespersons endorsing it. There are a few YouTube videos & infomercials on it. Looks quite good to me actually.