When both trim tabs are all the way up, the boat leans toward starboard.
I trim the starboard side to about 2.5 to level the boat.
I don't think it touches the water until about 1 to 1.5.

I have not put a strait edge to the bottom, but it looks strait.
I think I have a weight distribution problem. I have 2 batteries on port and 2 batteries on starboard, no water in my holding tank on port, and a heavy icechest in the cooler which in inside the cabin on starboard. I place my heavy anchor on port, took out my toilet on starboard. I figure I have about 60-80 lbs more weight on starboard. That includes the differance of the weight of my wife and I. Most of that weight in inside the cabin.

Full Cabin - List to Starboard?
 

Don't overlook the weight of your" Helm Station" 50 - 100 Lbs.

So, you are trying to say that the Cigarette full cabin weighs more on starboard direct from the manufacture.

Full Cabin - List to Starboard?
 

First off you have to look at your boat at the dock, if it is listing to the starboard side it has nothing to do with the bottom, drives spinning in or out, or HP. When you take in to account the weight of the helm fiberglass, steering wheel unit, gauges, compass, GPS, radio, hoses, controls, panels, 4x28'+-cables, 30' of 1/2" electrical cables, rigging tubes and everything else that runs down that side of the boat it all adds up. More than you would think.

It does seem to lean a little toward starboard at dock.
I think draining my water holding tanks on the port side was a mistake. It can't offset the cooler. Also, by me adding 2 batteries on the starboard side cancelled the 2 batteries on the port side, which was most likely placed there for a reason.

I'll try filling up my water tanks first to see what happens.
If that helps, then moving the 2 batteries that I added to the port side shoould also help. Too bad it too cold to go out in the water.

I think that is probably where your problem lies, was it all level until you added them?

Don't know, I added them when I first got the boat.

Change what you said, put the boat at the dock, look at it, if it is still listing and if you have a swim platform stand on the port side and see if it straight, might take as much as 180 lbs. to correct.

Ok, I got curious enough to do the math. Let's say a boat with 600 Hp motors is running 70 MPH. At that speed each motor would be producing about 3200 pounds of thrust. For every 1 degree of trim difference you would have a vertical force differential of about 57 pounds.

So if one drive was dead neutral and the other was trimmed three degrees you have a vertical force difference of 171 pounds about the longitudinal axis of the boat.

approximately

This is very interesting, so a small differnce in the guages could be enough.