Why would the oval be...
Why would the oval be more appropriate for top roping, considering the BD Light-D cost $.50 less and rated 5kN higher? Or is it just the visual symmetry when doubled-up and opposed?
Honestly, you''ll be totally fine with either one, as long as they're opposite and opposed. The symmetry does make it nice to TR trough, but it's not necessary.
Thanks! That's what I was thinking, but I also want to clarify something. My rope runs through a pair of opposed and opposite lockers, I use the light D's opposite and opposed to link runners/webbing/cord for the non-moving part of the anchor. Anything that moves get lockers.