But why?
I realize this doesn't your question (which always irritates me) but why do it?My former H31 had been varnished when I bought her and I never really liked it. My current 37.5 has never been varnished and it's great. I use a little Daly's Seafin on the wood, which is oil with some varnish in it, wipe it on and it's good to go.