In article , Larry Blanchard
wrote:

On Sun, 22 Jun 2014 12:18:20 -0400, Greg Guarino wrote:

Absolutely use both. IME, even those old "finish" sanders that don't
orbit should do nicely for your final grit as long as you sand with the
grain. Especially important to either dust or blow off each piece after
each grit.

This one (an old Rockwell) orbits.

Make sure the "orbit" is random. I seem to remember the orbits were not
random. If you use one of those you'll get cross-grain scratches.

And regardless, very light pressure downwards, letting the paper cut by
itself.

--
³Youth ages, immaturity is outgrown, ignorance can be educated, and drunkenness
sobered, but stupid lasts forever.² -- Aristophanes