I will soon be making some up grades my 2007 Pantera 4. I will be swapping out 3 27 size group trolling motor(currently36v) batteries and 31 size cranking battery. I will be replacing them with either 1 24v or 2 12v lithium batteries. I will also be replacing the cranking battery with a lithium as well. Moving from a Minn Kota Maxxum Pro trolling motor(36v) to a Lowrance Pro(24v). I know there will be a significance weight difference in the bilge. Will the difference in weight be enough, where a change will be needed in the motor height set up from where it is now?