OK, thanks for the input. There is a shutoff valve on each of the vessels, anyway, so the only thing that "should" run out would be the contents of the hose if I use a straight through quick disconnect. Good point about restriction of the flow and susceptibility to clogs w/ the shut offs.
Sounds like the straight through design is the way to go. I too will be brewing out doors, so it shouldn't be a problem to lose a few drops.
I will be switching hoses around a little bit more than if I had two pumps, since I will only be running one pump for the time being. (Batch sparging) Gotta get this d*** rig producing before I shell out for a second pump!
Thanks Bobby and Sparky!