The friend who first took me out for Sora's--in a stitch and glue rail skiff he'd made--claimed there were only about 5 good tides a year to hunt rails in Merrymeeting Bay. It's definitely better on the bigger tides, which flood everything and force the rails up onto the floating rice mats where they are concentrated and easy to hunt. But we also bring along a 20 and some light loads on early season duck hunts. If the ducks are not flying, we can push the rice at high tide as a combination duck scout/rail hunt. Beats mowing the lawn or raking leaves! Some day I'll do this from a proper rail skiff, as my friend's was left out in the winter, accumulated a load of snow and ice, and burst its seams in a freeze thaw cycle. Flat bottomed versions of the MMB sculler work pretty well, especially if they are fiberglass and light weights. My older round bottomed one is a better duck boat, but not made for pushing through the thick stuff. But on those big tide dys, it does the job.
Just realized I've commented multiple times on this thread without properly admiring that rail skiff of yours. It's a beaut--I am jealous as hell!