(Noted: Below info is my personal experience based on 30 minutes parking lot casting; TCX590-4 and TCR)
I got a chance to cast the TCX 590 today, light green grass coloration with beautiful cork. (this is Winston quality cork!).
This rod is very light in hand almost like a light 3wt rod to me. The decreased weight really increase the sensitivity and the feel. I always feel sage is very good at creating a low swing weight rod. crispy and light feel. extra sensitive!
TCX 590 is a fast action rod, but not as fast as TCR. The rod remind me a lot of the XP 590. (I feel TCR is a smooth version rod of XP 590, which is the rod I have been waiting for...Noted: personally I feel the tip section of Z-Axis is too soft).
The most amazing thing to me is the smoothness and sensitivity of this rod, I try to punch this rod very hard into the wind, I felt the rod can be loaded into the butt section. The light weight also increase the feel of the load. very easy to detact the changes of the loading and feel the line.
Overall, I think TCX not only is a supreb casting rod, but also would be a great fun rod in real fishing situation. The price $810 .... hmmm ... about time to let go other equipment...
Fly shops should start to be getting them in now. You can test cast one
at your local shop probably after October 1st. They will see their cast
in the public next week at FFR. I just spoke with Creekside Angling and
they will be ordering them shortly.