Well I guess regarding this whole removable fins issue (I must add that I don't like them too), I'm stubbornly unreceptive to this idea
It's part of the design to begin with, so If Yamato went with the removable option they should provide a piece to cover the holes. I feel like it's going the same route as: we don't like fins on the legs, make them removable, we don't like too many head lasers, make them removable and so on... It doesn't seem right.
Well maybe cause I'm a cannon/lineart nazi
More power to us if they're finnally removable but as I said it doesn't feel right.