17mm wheel hexes your choice?

[Matthew_Armeni]

Out of what you posted I like the M2C the best, then the Traxxas. The Maximizers plastic washer can crack, not as durable as the M2C. No experience with New Era. But have you thought about updating your axles to 8mm? Tekno offers a complete axle carrier that uses 8mm axles and 17mm hexes, just like the buggies and truggies. If you let Mike know that you're interested, I know he can start carrying them in his store.
Another way to get 8mm axles and 17mm hexes (but more expensive) is to buy the RD Racing carriers, the RD Racing 8mm axles for M2C hexes, and the M2C hexes for RD Racing axles. Pretty sweet setup, but pricey.