When I was ready to deck my current Pride of Baltimore II build, I made a little fake deck to see what would look best. Being lazy, I thought that easy is good! I was happy to note that the bare planks,once stained,showed the seams just fine, so I went ahead and put on the deck,stained it, and added a couple of coats of polyurethane. I'm quite happy with the results.
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I didn't bother with simulating nails or using real tree nails. If I cared enough I would have just made dimples on the planks with a big needle and let the stain bring them out. Sometimes good enough is good enough.