OK. A little update here. I went stone crab fishing with baits. I had to bait each trap individually by double clicking on bait, then single clicking on target trap. When the trap was deployed, a message is seen when cursoring over the buoy that a bait has been applied. My experience so far is that for approximately 50 traps baited, one stone crab is caught. This is indeed an improved rate, at least for me.
When a trap is pulled out of the water, it has to be re-baited regardless if it was full or MT when pulled.