I was a Diamond Hard varnish person myself. Comes from having extremely
messy kids.

I did two floors, the first in Bonakemi Spectra....the second in Diamond
Hard. The Bonakemi floor is beautiful, the Diamond Hard is kid/dog proof!
:O)

Oh, and seconded about the edge sander for black gunk floors...a necessity.
That and 24grit discs was what worked for me. I rubbed down with a palm
sander on 120grit.

Glen