I'm the odd one out as I use no droppers, the main line is tied fore and aft of each decoy about 6' apart, the decoys are permanently attached and go into and out of the totes in order. Each fish tote holds about a dozen oversize decoys. There are NO tangles this way. I've tried short drops with longline clips, (on 3/16, 1/4" mainline they don't slip) and a friend tried some 30" drops on some of his last year, they were more trouble then they're worth.
You don't cross the lines with the boat anyway, you go up and down the lanes, and we don't use dogs, even if we did, the birds drift out of the rig fast enough with the tide that it wouldn't matter. Jackie is also right that in a current or tide, your line is on the surface anyway, doesn't bother the birds at all.
You can deploy and pick up a rig like this as fast as you can haul. They just need to go out and back in the proper order to be ready for the next set.