I have a set of 2011 Ohlins inserts in 48mm Sachs legs, and a set of 48mm CC Marzocchis (revalved). Both sprung to suit. Have used them both on my 2013 EC250, and well.. Yeah! Theres not much in it.
I've had to revalve the Marzocchis a few times to get them right, and still have a few more things I'd like to do with them. The carts are easy enough to work with, but the fit and finish isn't anywhere near Ohlins. Clickers don't have consistant feel. Rebound rods have the needles peened on at some odd angles. In mine one needle just spins in the rod - have tried repeening with no luck. It still won't pull out and still works, but I dislike knowing its not how it should be. Parts are hard to come by, and as expensive as Ohlins as well! I've seen PFP adjusters crack around the bleed screw due to the stupid design which leaves hardly any material there, and even a PFP which was cross threaded, presumably by the factory. Inconsistancy between ICS springs, even from one leg to the next.
So yeah, the Marzocchi are a good fork and a solid performer, but come with a few niggles which any tuner should be able to address. In contrast, I have loads of hours on the TTX and they are stock valved, and nothing more. I service them, and ride them, and have done for around 200hrs.
How much do you want for the TTX? Interested in international mailing?