Regarding the Sage TCX, here's Sage's description:
Evolved from our popular TCR Series, TCX rods redefine the extreme distance category, as we continue to push the outer boundaries of fly rod performance.
I suppose some people fish with TCX rods, but like others have said it's a specialty rod. The Sage Z-Axis is a fast rod, but still fishes well. Moscapescador sells these rods, and if he says you can slow it down, he's probably right. OTOH, you might never like the rod given the other rods you have a preference for. Go to the store, and try some more. Leland Outfitters
has a program that allows you to trade in your rod for store credit: they sell it on ebay, and apply the proceeeds to your purchase. Angler's Habitat does the same thing. With so many different types of rods available, struggling with a rod you don't like isn't necessary.
P.S. A Sage Z-Axis 5wt will toss 3" Clouser minnows into the wind all day, and dead-on using a SA GPX line.