My deck is framed and almost ready for decking. Deciding between Ipe and Tigerwood in 1 x 6. What are the differences that would matter, mainly lifespan. I can't get a straight answer from the supplier as they both simply have a 25 year warranty. I will most likely be letting it weather naturally and Tigerwood is described as weathering to a reddish color as opposed to Ipe's silver, can anybody confirm this? Although they are both long lasting products does one outlast the other?