I use the CLX 27 every day.  However, I also have a CLX 18.  I interchange them to lighten the load when I don't need the longer one.
The 27 is a bit on the heavy side.  However, mine is one of the older ones.  Newer ones have more carbon so presumably a little lighter.  Also, they are much better now they have smartclamps.  Before this, I found that they forever needed adjusting.
If going for a 27, maybe have a lighter, shorter pole too?