There's not much difference in materials used to make kayaks these days. I have two , both sit ones and prefer these over sit ins. Sit ins are typically drier but definitely more cumbersome when fishing simply because you can't turn your body without turning the kayak first. On a sit on it's much easier to maneuver equipment and your body. For stability sit ins are more stable but for comfort being able to bend your legs , stretch them out, hang them over the side all play a major role in fishing comfort especially when out for hours at a time. And, in this case sit ons rule. They make outrigger systems for sit ins which increase stability. Practice and patience on the water will usually resolve stability issues.
