Unless you're willing to do the extra work/engineering of building retracts, I really feel like fixed gear on something as cool as the master series really detracts from the looks in the air. They work great as belly landers. Most foamboard planes do really. You have to really beef up the landing gear area if you want them to last and even then, almost any hard landing will cause a lot more damage...
But that's just my $0.02...