Grey colour for Ronin
kind of ambiguous and symbolic of the Ronin.
But really this whole thing is kind of dumb, just get an unranked rashguard if you are concerned about how you look and practice ... end of story. If you want a rashguard from a ranked series get the one that you are at. Personally, I wouldn't buy any other colour than white until Eddie or some other 10th Planet instructor says I am anything different. They are really not that expensive at all, and in my opinion it is like the student who complains about paying a modest monthly training fee but blows more than that amount of money in one night at the bar on a Friday and is too hung over to make sparring on the weekend.

But really this whole thing is kind of dumb, just get an unranked rashguard if you are concerned about how you look and practice ... end of story. If you want a rashguard from a ranked series get the one that you are at. Personally, I wouldn't buy any other colour than white until Eddie or some other 10th Planet instructor says I am anything different. They are really not that expensive at all, and in my opinion it is like the student who complains about paying a modest monthly training fee but blows more than that amount of money in one night at the bar on a Friday and is too hung over to make sparring on the weekend.