i carry a taylormade r9 17* 4 wood as my only fairway wood. i used to carry a 3 wood and 5 wood but never really found myself needing to differentiate between the two so i just simplified and split the difference. it's not very realistic for me to worry about specific yardages since i'm not planning on hitting fairway woods accurate enough to put it on the green. i tee off with it if my driver isn't cooperating or on short par 4's and use it for second shots on long par 5's. i've cut down to 12 clubs so my setup goes 10.5* driver, 17* 4 wood, 22* hybrid then 5 iron and down. works pretty well for me.