He did make some good points........in the end you use
the different fillers where they work best.....considering
their up-sides and down sides as you decide.
I will say this about Aves Apoxie Sculpt, I use it a lot and
it's not a filler putty although it can be used that way. It's
really a tooling medium great for making patterns or sculpts.
I prefer flat colors for showing sins like grey primers...even
flat black works well.