I've got a Knog Frog single LED headlight just to make me visible to traffic. I see they also have a 5 LED Bullfrog and I'm considering getting one, but the reviews are very mixed. A few people love the Knog lights but I've seen several reviews complaining that they aren't very waterproof and have failed under wet conditions. Has anyone had any experience with the Knog Bullfrog or Gekko models under wet conditions?