I love what you've done to the Tundra but.... does it sag under the weight of the jetski? I had a lowered truck at one time but it sat dead flat and would sag under a heavy load, but not one jetski. I had the original leafs in the back with blocks to get the backend down.
My truck has a 2/5 drop. It is a flip kit in the back with shackles. I am using stock leafs. My truck is one inch lower in the back sitting with no load at all. When you add the ski it does sag a bit. Im working on getting a better (stiffer) pair of shocks for the rear or running air shocks.