I think it is time to buy a new set of clubs since I have been using DCI-822OS since they came out....but I don't seem to be able to find Titleist OS other than what appears to be these same 822's.  I am a senior golfer, 4 handicap and am still hitting my 7 iron 155 yds.........I was of the impression updated technology might have added a bit more COR to the clubs so I would like a recommendation.  Is there a new OS Titleist club or should I look at the AP 1.  I would love to hear what you think.  Kind rgards.....Hank