Anyway I haven't noticed any bad CA actually, but I have the RZ W lenses? Maybe those are better?
I would Consider a trade of a macro for one of my RZ lenses since I mostly use it for macro anyway. But probably wouldn't want to invest $ into it.
I can understand the flattening the scene part though.
If anyone is interested let me know, in the mean time congrats again OP looks like you have something spectacular