Bill,

When chosing the correct grip size, if possible, go visit your local Titleist rep or golf retail store with various grips, and sizes, on display. Take an iron in with you with your current grip.

Grip your club like you normally would. The fingers on your left hand shouldn't be digging in to your palm, just under the thumb. If they're digging, then the grip may be too small. If the grip's too small, you might hit a lot of misses to the left. If your fingers don't dig in to your hand, but, there's a noticable gap between your left fingers and your palm, then the grip may be too big. If the grip's too big, then you might hit a lot of misses to the right. You want the fingers on your left hand just touching the palm of your hand. Try out some different grips until you find the right one that best fits you. Sometimes, build up tape can be used to build up a grip that would best fit you.

My fingers do dig in.  All my misses are to the left, never to the right.  I'm going to try  mid size grips. Thank You for your help.

One more question about grips. I see there are light weight grips, they only weigh 24 grams. What effect does this have on the club. Do these grips make the club feel heavier. Also will it have any effect on how high the ball goes.

A little heavier but it does not have any effect on the ball flight.

I saw you mentioned light weight grips and I am guessing you were referring to the Winn Light grips and I did not have a good experience with one of those because you lose feel and they do not last long.  I just wouldn't recommend them thats all.  

Thanks Sylar, those are the grips that I was going purchase.

Bill,

Switching to a lightweight grip will increase your swingweight points a tad. You should be able to feel the shaft characteristics a little more, as well as the club head, in relation to your swing. If your club is lighter, you may be able to increase your swing speed, ball speed, etc.. Golf Pride makes an excellent light weight grip.

If you go with a midsize grip, your swing weight would change ever so slightly, but chances are, not enough to make a huge, noticable difference. Also, the grips shouldn't have any effect on your ball flight. Let us know if you have any more questions.

Hi Bill, great question you have here. When it comes to choosing a grip size it typically doesn't have anything to do with your glove. In a general rule of thumb, when you grip the club your four fingers should just be touching your thumb area. You normally don't want your thumb area to overlap. Also it can be just the way it feels comfortable in your hands. Every golfer is different, therefore you can never have the exact same fitting specifications as another golfer. Hope this helps. 

Respectfully, Manny M.

There may be a way in figuring this out, ie by measurement, glove size, etc.  But I guess the best way is feel.  Try out the multiple sizes available and find out which feels very natural and comfortable with you.  Even the number of tape/wraps under the grips fall into consderation.

Its not that hard to change grips yourself.  And there are alot of different kinds out in the market.  I suggest experimenting.

Good luck.

You are close to correct because they go by your hand size and longest finger.  

There are varying thoughts on this, it could be based on glove size or just looking at the position of the fingers in relation to your palm when you hold the club with your right or left hand.

I just changed mine based on holding the club and it felt better and I no longer slice my clubs used to be set at B1 now they are back to A1.