The P15 is actually a pretty stable boat. I loved mine and never had a problem with stability. The only reason i got rid of it was to get a trident. If you flip it just watching your lines than you need to not be so tense on your kayak. Relax and let your hips roll with the swell. Also, keep your head over the center of your boat. Try flipping your boat with your head in the centerline... not gonna happen.
