The 12t is going to be stable without a doubt. My FS10 is as stable as a 10ft sit-in kayak will ever get but I can't even think about standing. Sit on top kayaks with at least 11ft lengths is what you're looking for and the 12T may be it. May want to research Vibe, Perception, and Field & Stream (Dicks Sporting Goods) as alternative brands as well. Vibe kayaks look top notch and come as a package with paddle. Check out KayakBassFishing magazine they have a great gear guide!