It shows to balance at 4 1/4" from the LE. Ok, I have it set at 4 1/8" which makes it nose heavy at the book setting. Which when I set it up on the book way it will flop the ground on the nose but in the 4 1/8" it is just about balanced with just a little nose drop. Should this be redone or will it be ok? I put the battery under the tank and added 3/4 of an oz of lead is all at the firewall.