Robert, 

I would recommend more loft for slower swing speeds to benefit from more carry distance, but this all depends on exactly how high you may have been launching your 10.5*.  From what you've told me, it sounds like you are a great candidate for the 12* D2 head.  You could ask the Club Fitters at Roger Dunn to take a look at your ball flight with the 10.5* vs the 12* to see which loft will benefit you more.  

Cameron

1-888-TITLEIST 

I've been using a 13* A flex draw driver since the beginning of 2011 (Burner 2007 shortened to 45").  I actually hit it much farther than I did a 10.5 neutral driver.  I had the same problem with a neutral driver where I would get high trajectory on a straight shot and barely hit it 200; If I hit a fade it would go lower and about 230.  The 13* draw driver turned a power fade into a straight shot for me.   I'm 55.

My swing speed is about 82-85 mph.

Don -  I love the HT loft driver because I find the middle of the fairway pretty consistent and my worst shot may be on the right edge of the fairway.  I also tee the ball pretty low (the old school  standard of 1/2 the ball above the crown - about 1 1/2").   The other beauty is I don't need a 3 wood because an 18* 5 wood does all I want on the fairway and par 3s. 

Back to the original question - I had been trying various used drivers of 10.5 degree without any luck.  Not excited about how retailers treated me, I tried a pro shop that had launch monitors/outdoor winter range.  I was a little nervous about moving from various brands to looking at Titleist and Brand P.  The pro was not satisfied with the launch and spin he could get with 10.5 degree models (D2 910), and Titleist did not yet have a 12 degree head for LH.  The numbers were there for the 12 degree when it was ordered.  It's all in the fitting - I ask for an explanation of the numbers and took the recommendation.

I tried a couple of 3W with little success (...misnamed as a fairway for me..) and even a Brand P model that was 16 degrees - moved up to sometimes successful.  Now using a 21 and 17 FW to gap from the 12. The 17 needs a good fairway lie but is useful on par 5s.  It is also dialed back to 17.75 loft.  The pro shop now recommends this setup for the mature player except 6-PW irons and 910H 24 and 27 degree.  I still use a 5I.

My dad (who is now 78) told me in 2007 about pros recommending a 4 and 7 wood setup (I used his 975F 16.5 and 20.5 fairway woods for 2 years - they hit OK but tended to balloon a little).   I used to be able hit an old school 3 wood and crush it off the tee (never could hit it off the fairway and the 4 wood had to be sitting up; I often used the 4 iron as a "fairway wood" although I could crush a 2 and 3 iron off a good lie or the tee).   I've had only one 15 degree 3 wood that I could hit with any degree of success (a 980F) but distance lacked (about 190 yards) and actually hit an 18* 5 wood about the same distance.   The 4/21 hybrid I carry nowadays plays more like a fairway wood (it is 40.5") and only an inch shorter than my old 7 wood - only 5-10 yards less than the 7 wood but I get 5-7 yard more out of the  5 wood vs the 7.   I don't carry a 6 iron anymore because my distance is nowhere near as consistent as the 5/26 or the 7 iron.

I'm giving some thought about upgrading my middle hybrid from the SQ 5/26 to the 910H 27 - that gives me 6* loft between my 4H and AP1 7 iron.   I have only a 10 yard gap between the 5/26 and the 7 (SQ2 and CPR3 hybrids are very easy to hit but distance does lack a little mainly because they have much shorter shafts vs other brands - easy to control, though).

RObert, I am 52 but have driver SS of 105 and play of 2 hdcap. I play tournament golf every month and play with what we term Super Seniors, one guy is 72 and still play of 1 handicap of the normal club tees. He use a 12 degree driver and still hit it over 200 yards. He use a 3 and 5 woods and a 3,4,5 hybrids then he has Muirs blades in 6,78,9 PW, 53 and 58 wedges. As you can imagine he relies a lot on short game and will tell you that any wedge with more loft than 58 is a wast of club.  With proper course management knowing where to miss the greens ensure that you don't have to play high risk shots with lob wedges to make par. His key is this. Play the clubs and the game that wil give you consistancy and opportunities to make par or better.  With good course management and proper  club selection for my bag, I am playing the best golf of my life and will this month drop to a 1 or 0 handicap. I have gone from a 9.5 D3 to 10.5 D2 with a Accra Dymatch shaft and my driving consistancy is now 78% fairways hit and increased my distance by 10 yards. Go for the higher loft D2 , you also have the adjustability to lower the lo

Haven't seen you on the forum in ages.   I got rid of the Eye 2s and have AP1s (I gain a club with the latter) 6-PW.  I finally broke down and put a 4/21 hybrid in my bag (does play like a 9 wood because it is 40.5").  Still not a fan of a 3/18 hybrid (I hit a 5 wood much better).

In regards to whether anything above a 58 wedge is wasted is a matter of opinion.   I seldom use my 58 and 62 but they come in handy when needed. San Diego CA has wildly varying course conditions that sometimes are bizarre (such as pin placement 8 feet from the front of a small green playing downhill with the fairway mowed very short; easy to play with a 62 or 64 wedge but a bit tricky with a 54 or 58).   Phil Mickelson is a SD native and some of our course conditions probably explain why he uses a 64 wedge; his home course is Balboa Park (both the 18 hole course and the exec course have tight fairways and small, hard greens).  I've actually had shots where I deemed it better to cut a 54 vs a straight on pitch with the 58 or 62.    I'm still evaluating the 58-04 (I've had it for all of 6 months now) to see if it is a worth while addition to the bag.  The 62-07, on the other hand, has been a par saver on a few occasions.  I'm pretty proficient with an X wedge (been using one since 2006) but never found value in a 48, 52, 56 or 60.  I have a comfort zone with a 51-09 and 55-12, though (that is why I bent my 50-08 and 54-11 1* weak).   The 58-04 is, more or less, "nice to have" and I have it pretty wired because of my use of a DSG 58 and 258-12.