PA,
This summer I built the Z-Axis. I chose the 9', 4pc, 3wt. I have been an avid fly fisher for over 25 years and this rod is one of the sweetest I've ever used. Early in August, my wife and I went to the Yellowstone area and got to fish the Gallatin. It was a very breezy day. In spite of the wind, the Z-Axis was able to throw a light line 80+ feet into the wind without difficulty (I was fishing very small drys with very small trailing nymphs). I have not used the Loomis, so I can't comment there. If you are considering these rods, go to a local fly shop and try them. Remember, a 4pc will be slightly stiffer than a 2 pc. Best regards....