I am kayak fisherman. I spend about every weekend with my son on the Yak and what I noticed was that my seat was just slightly low. So I built an seat extension. I know that this has not been something that I have seen a lot of people do, so figured it could help some of those that are searching for ideas of how to raise their seats too! There are a few different pictures, one has the EMT prior to shrink, and also the seat was way to high in those pics. Then I added shrink and lowered the seat. Very happy.