not sure if all my tillering practice paid off
that's always on the top of the list, but chasing a ring on a board is not common either.
i have found that linseed oil darkens more than others and have always used a thick paraffin paste applied to warmed wood. the paste was tested and described by Dean Torges as more moisture resistant, simpler to apply and easy to renew to many cured or dried finishes.
BTW, hickory is tough to keep dry in a humid climate as it loves to gain moisture content.
I do much prefer chasing a ring even on boards just for simplicity sake since the humidity here can cause delamination to bamboo or similar backings. Plus I like the idea personally of selfbows more than backed, just less things to go wrong. Though I have had success with rawhide backings the quality of the NZ natives it was applied to left a lot to be desired at times, though I haven't tested it with Black Maire yet which so far is the most promising NZ native bow wood.
Unfortunately I haven't found a source for Hickory here yet but I have heard of its sponge-like nature being one of its few flaws. I would be keen to try it out one day.
Interesting I have noticed a difference between using Linseed and Tung oil that the Linseed seems to darken the wood quite a noticeable amount more than the Tung. I've heard of that paste before but never tried it myself I will definitely put it on my "to try" list, I appreciate the advice.