First thing I look for is where the heart of the log is located. If centered, then I would half, then quarter. But if the heart is off-center, then I would only use the wood in the center of each half (smaller rings to one half, larger ring to the other half). This will only produce two staves. Staves, where their radial growth ring thickness run from thick to thin, will crook.
You only need to keep the ends sealed with hickory. Sides do not need coated. I've never seen the first check in the backs of hickories.
Best to go ahead and debark, rough your bows out and let them dry down to the proper MC of around 6-8%. Reflexing can be accomplished with dry heat when you're ready........Art