that's currently being pushed by a lot of the manufacturers.
I was gaming a Cleveland Launcher FL Ultralight 3 Wood until today. When I caught it, I could get great distance out of it, but I was very inconsistent with the C'Kua 43g shaft that was in it.
I went and was fitted today for a new fairway wood, looking to replace the 17* Cleveland HL. I sat and hit a few different fairway woods that were around the same loft and nothing really impressed me enough to replace it. The salesman suggested that I try the RBZ and initially I didn't like it any more than the Cleveland and the numbers weren't much better. Then he grabbed me an 18* RBZ Tour head that had a stock XCON-7 Stiff in it. I immediately noticed how much heavier it was and that the head was a bit smaller, and took it into the launch monitor.
I immediately started hitting better shots than I'd seen with the lighter Cleveland and RBZ standard woods. I typically hit Regular flex (92ish mph swing speed) in my fairway woods, but after watching me hit a few shots, it seems that I have a pretty fast tempo and the stiff shaft seemed to help me out. After trying a host of different shaft combinations, too many to remember in fact, the 76 gram XCON-7 actually gave me the best numbers, which was nice because it saved me about $100 over a custom shaft.
This is the first club that I've ever been fitted for where a stock shaft offering actually performed best for my particular crappy swing. So as of now, I'm off of the lightweight shaft kick and I'm going to stick with a heavier shaft in my fairway woods.