Originally Posted by jonny water
...what the heck is the difference b/w primary and secondary stability and how do you have any idea how good yours is??
Primary stability is when you're sitting straight up and the hull is flat on the water.
Secondary stability is when you're leaning to the side and bracing.
Both are generally used referring to the boat, not the paddler, and you'll know the difference when you sit in the boat.
I'd say secondary is waaaaay more important for paddling, but I can relate to wanting some primary "at the end of a roll to give me the time to figure which way is up". Other than that, it might just lull you to sleep as you bobb down the river in-between thrashings!