I have just finished my second Greenland paddle. I have it drying with the latest coat of pure Tung Oil. I decorated it with wood burnings out near the ends of the paddle, and also added the year and my makers mark on the center of the handle. I did blade edge protection with an application of west systems 655 Gflex thicken. I just did the edge not the faces of the blade ends. It adds a nice brilliant amber highlight when the sun shines through it. I am applying the Tung oil with 1200 grit wet/dry sand paper. letting it dry and doing it again I have 6 or 7 coats on it now. Here are a few photos.
You can see how far the Gflex edge goes along the edge of the blade and tip.