Just got a call to refurbish a mahogany sign I made for an office complex back in the '90s. It gets sun all day. I'll have to do it on site.I'll sand it to bare wood with a ros, but I'm not sure what to finish it with. I'm leaning towards using Flagship varnish, thin the first application, sand lightly and put on several more coats. What I need to know is if there are better choices for refinishing, as I'm not current with what's available. Thanks in advance.-Greg