Will the TX Pro work with all randonee bindings, or just Dynafit? Ie. will they work with my Fritschi bindings (in addition to NTN bindings)?
I do not believe this is fritschi, naxo, duke compatible (David just cross checked with the Scarpa website - only compatible with Dynafit TLT bindings.)This is correct all of the Scarpa Bellow style AT boots will not work with anything but dynafit as they can back flex and pop out of the heel.
I work in the ski industry and ski my TX with NTN, dynafit, Naxo and Marker Dukes. There is a bit of flex under the Marker and the Naxos but they do not flex out you just have to set the slider under the ball of the foot properly. I don't know about the fritchis have never tried them.