It's not necessary to have water over the hood to hydrolock an engine. I didn't stop in the water holes I've been in to take pictures...I was too busy driving through them. Why would I stop, get out of the jeep, let water fill in the whole interior and ruin any electronics that I have left? To stop and take a picture is the biggest poser of them all. To plan ahead and have someone standing there ready to take a picture is even more of a poser. I dont' go wheelin to take pictures to make people think I'm tough...I go wheelin to make it through tough obstacles while others get stuck and blow engines. I have proof enough that snorkels work...Me=0 blown engines...Friends=3.