Thanks, guys...now the big faux-pah!
PFF just PM'd me and quizzed me on the drop of the grade vs the length. He noted that a 72' long launch that drops 5' would "put water into the truck doors before the boat floats". First I geeked out, then I remembered that about 20' is exposed on the shore. Without running out to the truck and measuring clearance and then running a buncha calc's, what's the consensus?
(thanx for the bump, PFF)