Ok, checked the metal lines, all is good with them. I looked at the return hose again, and although the line is only about a year old it must have shrunk down some, as even with the clamps all the way tightened down the hose could be twisted around on the metal lines. I never tried twisting before, just looked for leaks. So got a new piece of hose (different brand) and new clamps, and although the new clamps do seem cheaper, they do seem to hold the hose tight to the metal lines. Ran the car, and do not smell any fuel or see any leaks as of right now, but will keep checking to be safe. Thanks to everyone for input.