David Weaver
has good cutting action feel when spreading on corian and strong cutting when using. FAR stronger than anything else in this group - blackens the corian all over quickly.

for contrast, this is what the gold does buffing the back of a chisel instead of being used on corian.

It's my choice for the buffer because of this. It has the power, but the buffer finish will be "fine" grained, even if it remains visible.