Just finished my changes on my LL Stinger XP. Added rear bulkhead to make entire rear end water tight, installed front NRS flotation bag and sheet of 2" closed cell foam to foot board on back side to further fill up front cavity.
To test rear bulkhead I filled it with water and had no leaks after 2 hrs sitting full.
I took it out on a calm section of river to see how it rolled and check for fitting, being the idiot that I am I rolled and forgot I had my paddle stuck in the front loop of my skirt, so I popped my skirt while upside down, finished the roll with a swamped boat.
I was pleasantly surprised that high rocker made the weighted center made the boat crazy stable, totally unlike my touring boats. This has just become my boat to help people practice wet re-entry. I realize waves will make the equation different, but I am blown away with the result of my non-scientific test.
Is this possible with other high rocker boats? My Zephyr and Avocet have some rocker but when they get swamped they are completely different animals.