i've been reading everything i can about smart tabs and they seem to be just the cure for my problems but here is the situation.<br />i have a 1986 15 1/2ft champion bass boat with a 70hp mercury that is stern heavy as it is with plenty of bow rise. i will soon be adding a third battery to the stern so i assume bow rise will be greater. i am looking to add smart tabs soon and i am just undecided on which ones to buy. will st980-40 be enough or will i need to step up to st1290-60.<br />any help would be greatly appreciated.<br />thanks bert