Wax isn't a bad idea on any finish. In addition to anything it may add to
appearance it helps protect the finish from life's little abrasions and
scratches that eventually build up dull a finish.
As too whether to buff the finish with steel wool or not, or even do the
full rubbing out process, in terms of protection it doesn't do anything
either way so it would be entirely up to you and what you want the finish to
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