I am a little confused, are you referring to floatation that is inside the boat hull like foam under the seats or are you planning on adding floatation pods? As mentioned above if you are referring to the floatation inside the boat, that only comes into play when the boat is full of water. The purpose of floatation is to displace water. Pods will add displacement volume and allow the boat to float higher but, only in the rear of the boat where they are mounted. Typically, most boats are stern heavy due to the motor, gas tank and operator in the back, that is why pods are added to help offset that.