Well to be honest I am neither of the 2 and I have frag disks of aussies on the bottom of my tank. Why? Because I wanted to buy a varitey instead of spending it all on one or two whole colonies. I am not growing it for resale, but to have a beautiful multi-colored tank full of different acans.
PS. I have a Full (not cut at all) Bowerbanki colony that takes up a nice spot too.
It's the size of a softball and a bit bigger..LOL!