Thanks each of you for taking the time to respond with your personal experiences with different types of tops and bottoms. I have done a little research and have found that both the advantech and LP Legacy both use a glue that is polyurethane based. No wonderer they are waterproof. I was hoping that someone here might have had some experience with the two. After watching videos on each and already happy with the advantech, I am going to take a chance and buy a few sheets of the LP Legacy and give it a try and compare the two myself. There is a unique video featuring this product but, short of exposed fresh cuts where the edges are exposed, and that is where any problem would probably start? But as texanbelchers stated about advantech, paint the edges well; I will.
Oh yes, I almost forgot to add. There is another similar product from Warehouser called Dimond with a similar lifetime warranty, which also features a 500 day, weather exposure, no sand no warpage! Thats right, complete exposure to all the elements including traffic of folks from a construction site. This warranty is similar to the other two competitors. So the folks at advantech have the competitors hopping to catch up, it appears. This competition should be good for all in my opinion.
Phillip