The instructions aren't real clear to me. How do I "blind" nail these 3.5"
strips that I'm mounting vertically. I tried putting the 1.5" finishing
nail through the tongue
of the wainscot, but the nail head is still visible. If I move the nail any
further out on the tongue, the wood will split. Also, I'm installing this
vertically over sheetrock, which means I'm not hitting too many studs. Will
the top and bottom trim and a few nails into sheetrock be enough to secure
it?