Nice man, I got 2 ultralites in the garage as well and a wilderness tarpon 120. I just picked up a seafoam for the wife this past Saturday. You can't beat the ultralite for the weight and being compact for skinny water. I love how well it turns and how straight It tracks plus it has the speed of a 12 footer.
The ck1 is a little wider and little long, much more stable and air tight. Its only a few pounds more. I haven’t found anything negative about mine yet... The ultralight would be fun for faster moving water. I could see having both.
If you secure the seat it buys u a lil more time before you dump. Heavy load outs can lead to dumps too! I keep my load outs weight close to the deck. the higher the weight above the deck the more tippy it becomes!