hmmmm. a real review i see. lol. well. that is where the extang products shine. such as the solid fold, and trifecta. since they actually sit on top of the rails their is reallly no way for water to get in. the only time a few drops have ever managed to get in was taking it through a power wash, where it was aimed directly at the seals. even then it was very,very minimal. but on the downside. it doesnt look as cool. sticks up from the bed about 1". and the last 16" of the bed cant be used unless you take the cover off. which takes 2 min.i still think i will be making the switch to the bafklip....