Best value for upgraded Driver shafts?

I play the Callaway RAZR Fit Extreme Driver with the stock 65g S shaft, but I'm looking to replace it with some form of upgraded shaft since I need something a little more consistent.  The little adjustment piece on the head of my driver broke so I figured this would be a good time to just replace the shaft also, but not sure what to get.

The stock shaft just feels a little too whippy and I think I need something that's a little more stick to swing.  The thing is that I'm in between a heavy S or a light X, but I think going with a 65-72 g stiff is probably more fitting since my swing speed comes and goes.  I like to be able to work it both ways when I'm swinging it well, but when my swing speed isn't quite there, I go to the low controlled fade.

Just curious what people have put in their drivers without spending $300+.  I'm looking for something in the $100-$200 range.  Or do I just got and hit a bunch of different shafts until I find one that feels right?

Wouldn't this make more sense than asking random people what they have?

Of course it would.  The point of me asking was so maybe I could go in and request certain shafts depending on what people may or may not suggest here.  Making an educated decision is a little more helpful when you have some insight from those with first hand experience.

Yeah, but the problem is that their first hand experience only applies to them.  All decent shafts from decent companies are manufactured well, so all you're asking is what people prefer.  And that isn't going to mean anything in regards to your swing, because its not the same as theirs.

FWIW, I had a RazrFit, then an xHot (both 10.5), and I use a Diamana Kaili 70 X stiff 45" in both, and I love it.  But I was professionally fitted for this and prior to the fitting, had I asked 50 people, chances are just as good that nobody would have suggested it.

Of course they wouldn't.  Anyone who has seen you swing would suggest that you quit the game completely.

I believe that is the wrong smiley for that one ... you need a "rimshot" emoticon.