Just got my new Phoenix 920. super excited about it and i just finished the break in period for the mercury 250 pro xs. I'm having trouble controlling chine walk for some reason. i have a 25p fury and when it gets around 69-70 mph it starts to chine walk to the point that i have to slow down to make it stop. i haven't trimmed it up too much in my opinion but who knows. i believe i messed my prop to pad to be 4 inches. Anyone know if that is too low or what else could be causing it to walk so bad?