I am looking to buy a flash trigger for my OM Systems OM1 II camera and noticed there seem to be 3 major brands. Backscatter Turtle - Smart 3 Underwater Technics I was wondering if anyone has seen a comparison among these triggers? I looked at Youtube but only found single reviews - no comparison among the flash triggers themselves. It would be nice to have thoughts/opinions from photographers that have used the most recent triggers as well.