it's also kind amazing at how much less drag you get with the motor trimmed up. when you take off in all down mode and get on plane watch how the spray from the side moves toward the stern as you trim up. all down the spray is coming off about the windshield(like reels sig pic) and with it trimmed right it moves back to about where the rear bimini strap is.

1. Bring boat up on plane with engine trimmed down.

2. Start trimming up engine.....can trim up till the prop starts loosing its bite and
( sounds funny from exhaust), then trim down just a little till sounds " normal".

3. Can also trim up till boat starts to " porpoise" meaning the bow rides up and down.
Then trim back down a little till the boat's riding flat again - not up and down.

This assumes it's calm enough and you're not pounding the hull on waves.
You'll want to keep the engine trimmed down to force the bow down when it's rough or else you'll pound heavily.

Trim tabs increases this range of trim - and allows you to work it in concert with the engine trim.

Thank you everyone for all the great info...

Its something you need to play with until you find your boats sweet spot.