You might want to try the Talamonti shafts for the 3-wood (and a driver). I've got them and really enjoy them. I think distance wise they are solid, but accuracy, consistency, and feel they are as good as it gets...and affordable. I would recommend getting your swing speed measured and sending a video of your swing to Phil Talamonti and have him fit you for a shaft. I'm also working on MOI matching for clubs. It makes a lot of sense. I'm probably goiing to MOI match my clubs in 2-3 weeks. From what I've been told, it is at its best with fairway woods, hybrids and long irons.
I think with shafts...in general...too stiff will cause the ball to have slice axis spin. What's the #'s on the change in the clubface for every cm of shaft deflection? I think it's 0.7* closed for very 1 cm of shaft deflection. If a shaft is too weak...the shaft will kick more and will be tough to prevent it from kicking to early...face gets closed more and now the likelihood of hooking one increases.
3JACK