I bought a RTT with annex from Geo Adventure Gear from Venezuela. I like it so far and it looks like a descent quality tent. The first time I took it out it rained lightly for a few hours with virtually no wind blowing. The annex leaked very bad from the upper and lower zippers. It was coming in through the rain flaps that go over the zippers and siphoning right through the zippers. There was literally a pool of water on the floor. Nothing was touching the tent where it was leaking. I contacted them and they informed me all other makers' annexes leaked just the same. I find that hard to believe. Does anyone else have any experience with camping in the rain with their annex? Did yours leak? I ordered some LiquidOff to put all around the rain flap over the zippers. Has anyone used that stuff before?