A few years ago I heard a few golf insturctors saying on TV that most gtolfers would be better off to trade in their 3W and their 5 W for a 4 Wood. One club to replace two, which would upen up a spot in your bag for maybe one more wedge to help with your short game around the green. While this is a pretty good idea, the problem I found with this 4 wood replacement, is that it's VERY hard to find much in the way of a 4 wood today. Most all 3 woods are 15* and most 5 woods are either 18* or 19*. so a 4 wood would need to be either 16.5* or 17* to fit in the middle. Problem I found was that their just weren't many 4 woods on the market.
Now I have found a way to solve this problem. What I found recently online is that both Taylormade and Callaway are selling what they call a Mini Driver that is about 150CC in size and they come in a few lofts, one of which is 16*. The clubs are about 42.5" longs, so they are just about the same as most fairwaay woods. The Callaway even comes with an adjustable hosel so you can change the loft up or down a degree or two. so if you want a 17* loft, you can have it.
While NOT exactly a 4 wood, it could be close enough that it would be a great FIT for a lot of golfers out there. And right now you can find them at a pretty decent price on E-Bay. Brand new ones can be had for $100 if you look or LESS Going by the customer reviews I've been reading on these Mini Drivers, they are a good club to replace the longer and bigger headed 460CC drivers of today that many golfers just can't hit well. MORE distance than a standard 3 wood if you go with the lower loft options, and easier to hit than the standard size drivers. NOT perfect for ALL golfers, but worth thinking about for those looking for a 4 wood OR a club to replace their driver off the tee.