About Golf Club Custom Fitting
Golfers come in all different shapes and sizes, and there are clubs to suit every imaginable body type. However, not all these clubs are available 'off-the-rack.' That's why there is custom-fitting.
Custom club fitting, as the name suggests, is clubs that are designed specific to your size, shape and swing. Custom fitting is hardly a trend. It actually dates back to craftsmen of over 100 years ago who used their hands to design each hickory shaft and head according to very specific weights and sizes.
Club fitting is specific enough these days to deliver to you a club set that's almost perfectly matched to your body. However, custom fitting by itself is no substitute for hard work and plenty of practice. That being said, since custom club fitting is fairly specific these days there's bound to be some improvement to your game once you get comfortable with the new clubs.
Many serious golfers get custom-fit regardless of other factors, because they want a special set of clubs geared perfectly to them.
What about online fitting?
As long as you are not (yet!) a PGA Pro chances are that online fitting will serve you well enough to get a good fit. Getting custom fitted online is easy and painless with web-based fitting tools like the 'club fitting wizard' at Pinemeadow Golf or the 'e-fit System' at GigaGolf. Both tools are free, you can click either link and just try them out. It helps to have a partner who assists with some of the measurements required, like your full hight and your wrist hight from the ground.
The info you get from online fitting is sufficient to also buy your clubs online, and you don't have to spend time going to the mall - you can rather go golfing...