I keep my drives at 2 and tabs all the way up (unless it is ROUGH, then I use a tab setting of 3 or 3.5 or so depending upon how rough it is) at speeds of 35 and below. Don't notice bow down, I really do NOT try trimming Up until running above 45 to 50 mph. That way, I feel the bow lift as the drives come up, I run DEEEEEEEEP TRS drives with 4 blade Hydromotive props. When trying for top speed, the boat likes the drives at 5 or 6 as it keeps picking up speed as the drives reach these numbers.

At 30 to 35 mph, I get the most efficient ride with the drives set at two. (three is neutral), so one number under or "bow down". By efficiency, I mean MPG.

I notice that with a head wind of 5 to 10 mph and running 32 to 35 mph the boat has a tendency to propose (bow up and down rhythmically), in that case, I use a little more tab, or if speed is lower, just add a couple of mph and it settles and runs smooth.

Compared with how the bow sits with the boat at rest, "really nose high", because it is a short boat with a really heavy, heavy azz. Approaching the boat from the front, from a distance on a jet ski, really gives the impression that the boat is sinking by the back. So when it rides level or mostly level at 32 to 35 mph the perception is that it is really bow down, when in fact it is almost level.

Think about this, if you took a rule and measured the bottom of the boat just at the steering wheel to the top of the fiberglass, (top to bottom thickness of the hull). Then did the same at the very rear, I suspect that the back tapers like mine, it is about 2/3 of the 'thickness' at the stearn as it is at the steering wheel. Don't know why they did this but that is the case. Then at rest, about 30" of this dimension is underwater at the back as well!!!


Constantly getting waved down by the water cops in no wake zones because they see the bow sky high they think I am really motoring along in the no wake zones. I show them by quickly shifting into reverse and stop dead still, I get strange looks because they just don't understand that not all boats that have a nose high attitude are exceeding the speed limit.

You really only need a 4' straight edge or so to check for some hook. Storing it the way described could have easily caused some hook. Hook will do the same thing as running tabs down. Itcreates drag and forces the bow down. A 29 OL with twins should have no problem carrying the bow. 71mph at WOT is maybe a little on the slow end for twin 425hp's.

To everybody else arguing about fuel mpg. You should take it back to the original thread that started it and let this guy try and get some help.

I'm deleting all of the unrelated and negative comments and bickering.

Actually they are T/Mags 375 HP I did hit 70 MPh but can only get to 60 now at 4000rpm wot. I just posted in the prop section for some more advice. Thanks for all the feedback

I Have a 29oil 1999, I have remove the original hook they made on 1999 up and it give me 3mph, bow lift, and a little porpoise when over trim.. Look Under the hull in front of the trim tabs. You will see, it's look like a 'integrated trim tab' on the hull..