: . . . This is mostly because there is a slight ridge where
: the paint and varnish meet and I want the transition to look as seamless
: as possible. Any thoughts?

Go to an automotive parts dealer and get 'rubbing compound'. This is a very fine abrasive coupound used in polishing the paint job on cars. Use that to polish away the seam. Once the junction is smooth, apply a buffed wax finish for a tremendous shine, You'll never know there was ever a seam line.

PGJ