3 questions so I figured I'd list them all in one thread. I'm a 3 handicapper but in terms of equipment and technology I'm not a pro...

1. I just put the 910 D2 driver with 9.5 loft and Diamana 'ahina 72 low-mid shaft in my bag this season. The 913 looks amazing. What are going be the differences between what I have now and the 913? How will it improve my game? Are there any new shaft options?

 If the 910F does what you want it to do, don't change it.

2. What's the best way to determine which bounce should I have on my 52-56-60? I know one thing to consider it the type of turf I play, but besides my home course I play in tournaments with courses that have all sorts of different firmness. I can't afford to have multiple wedges with different bounces. How do I find what would be best for myself?

52-08, 56-11 and 60-07 cover most courses.   I play AP1 irons so I use SM c-c 50-08 and 54-14, and SM4 60-10 all bent 1* strong.   The advantage of the 60-10 vs the 60-07 is that you can play it in deep greenside bunkers with soft sand (you have to do a dig shot in hard or wet sand); I think the 60-10 is more versatile vs the 60-07 .   I can play the 54-14 off a tight lie because of the narrow sole but I use a digging shot on tight lies; I also use it in very soft sand and it has a little more "intestinal fortitude" vs the 56.  

3. I love hitting 3 iron off tee's when driver or 3 wood isn't necessary. I'd like to have a little more length though than what I get with my 3 iron. I want to replace my r11 5wood because I find it's a better club off the mat than off the tee. I'm thinking maybe switch to the titleist 910 series 5 wood. Is the 910F or 910Fd solid clubs off the tee. What I'm really thinking of do now though is replacing my 5 wood with the 910h hybrid which wuld most resemble the length of a 2 iron. Any suggestions for what I just said??

I love my 910F 19* fairway wood and got it in a trade for a Superfast 1.0 5W and 4H.   I have it set at C3 for best performance.   As far as replacing the 5W with an equivalent hybrid, don't get overcome with the hybrid hype - best thing to do is compare them side by side.   This is a personal preference.  I hit a 5W the same distance as a 17* hybrid and 10 more yards vs a 19* hybrid and I find it easier to hit.