My first hybrid: I used a brand-X 3H in place of a 5W for half of the 2009 golf season. Strange club: great out of the light rough, but unpredictable off the fairway or tee box. I dumped it for 5W, and that for a TM 19* Raylor for 2 + seasons.
Along the way, I found I could hit Adams a12 Tour and Callaway Diablo Edge Tour hybrids with an R.flex shaft. (Tour head didn't produce hooks). But, I stayed with the Raylor and 3i.
In 2012 I switched to stock RBZ 4W and 7W, and 4H. I dropped the 3i. Ball went a long way with RBZ, but I had bad trouble with hook misses (light shafts in part).
This spring, I switched to the Tour Edge Exotics XRail 4W and 7W, and an Adams IDEA TECH V4 22* 4.Hybrid. The V4 has a Mitsubishi Rayon Bassara 60 x 5ct R.flex shaft (60 grams). The shaft has a low-to-medium launch, but reaches decent height at peak. It is good into the wind, and bridges the XRails and irons well.
Yesterday I bought V4 19* 3H with the same Bassara shaft. I may use it instead of a 7W on flatter courses and windy days, and possibly from October through March when the rough is thinner. (7W is super for medium rough, and for hitting into elevated greens).