I picked up a set of each, and am for the moment contemplating a second set of rebel ones. The center peg isn't an interference fit as it is, so there really shouldn't be any wear/tear. The small piece that slides over top is what provides the friction as you turn the dial.
The only thing I can see wearing out would be the ship icon inserts. And in all honesty, I plan on just painting over that and numbering them. The goal for me is to reduce the amount of stuff I'm carrying around, so carrying those inserts defeats half the purpose.
With 3 of each faction, I figure in a pinch I can use the other factions if I get the sudden desire to run an 8 ship swarm. And if I decide to competitively play an 8 ship swarm, I'll just have to grab the standard dial fronts beforehand.


