Well I tried some H C concrete sealer from Sherwood & Williams , it was the Oil based and seemed to work great but I have to do some more testing. It took 4 dips to get what I wanted and made them 2 hrs apart. It is glossy but not the real wet look that or depth that etex light gives but a lot less waste and less costly. The smell is not bad either, I do use a exhaust fan, but you can stick your nose in the can and not back up, like any of the urethanes. They do have a water base sealer that gives the wet look.
So for now I will continue to test, underwater, with plastic worms and leave in the sun, I will just hang one on the tree and let it hang for a year. So my impression is I think its worth the try.