I'm only writing these to keep the record straight. I find it amusing and yet pathetic all at the same time when people talk about what stock shaft to put into their new heads. Granted, I know many on here are young, with little spending money to go out and spend a few more bucks on something better.
Stock shafts are garbage. I love when people talk about their RIP, Aldila, or even any shaft that reads "co-engineered." These shafts are worth no more than $2 (and that's the truth). They are VERY inconsistant from one shaft to the other with exact flex and gram weight. So you think you are buying a 65 gram S shaft? Think again. These are not the real deal.
After-market shafts like Mitsubishi Kai'li (btw Titleist lovers, your Kai'li 72 is junk...Mitsubishi doesn't make a 72 gram shaft), Attas T2, Motore Speeder (the real thing), S1 and S2 Series made by Accra, and 'Ahina are just some common aftermarket shafts names that out perform ANY stock shaft.
-A little insight-
If your shaft costs less than $180...it is a joke. In my opinion, the shaft is more important than the head itself.