Agreed. A boat with a half full cockpit is less stable, but not terribly so. Therefore it is easier to roll. I taught a friend to roll this way and he caught on quite easily.

While you are at it practice "reentry and roll". In some conditions this is the only way you can get back in your boat.

~Bob

: If it's too loose, it'll either leak a bit or just pop off. Either
: way, all you do is get some water in your boat. And actually,
: it's almost easier (or even more easy) to roll a boat that is
: full of water. It's a bit slower on the rotation but not
: difficult by any means.