All the TX barrels sit at roughly 43mm, which is short by tournament standards and puts the weight well forward. What separates them is width and grip.

The TX1 is the slimmest at 7.05mm with the gentlest cut at 1.5 out of 5, letting the teardrop shape do the holding. The TX2 is the broadest at 7.5mm with triple knurled grip zones at 3 out of 5. The TX3 sits between the two at 7.13mm.

Worth knowing the TX3 comes in Cool Blue and Gold finishes that are dimensionally identical, so the choice between those two is purely how you want the dart to look. The TX5 moves to a standard flight shape and a more conventional profile.