Re: 75 vs 90
I would guess that you'd still be able to tow it at 40. Some 90's are the same weight as the 75's. Some are a tad heavier.<br /><br />Seriously, a bit more info would be helpful. What kind of boat? Is your 75 set up to the max now or is there more left in its set up?<br /><br />As mentioned, what brands?