I made two GPs by laminating redwood 'blades' onto a douglas fir shaft. The paddles may be a bit heavier than my WRC paddle, but the strength of the douglas fir allowed me to shape a small loom and still have a reasonably stiff paddle. Now that I've carved, tested are reshaped them to my liking (although they are xmas presents), I wonder what the most appropriate finish is to best preserve the contrast between the fir and the redwood. I fear the normal tung oil treatment will significantly reduce the contrast and make it a light brown / dark brown paddle. Despite many people's aversion to spar varnish, that would yellow the color only a touch. Are there any better suggestions?