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?