7/15 Maybe
So admittedly I didn't read the whole thread, unforunately one of the down fall of forums for me is I strt getting a short attention span...... to the thread starter I say this. From what you describe get the 2X, save your money, and enjoy life. It doesn't sound like you re doing any off road with it and as far as towing goes, yeah your missing a little weight in the front but I doubt you'll ever know the difference. When It comes to launching boats I've been doing it a long time and not once have I ever even considered wanting to have 4X to get up a ramp (and against popular belief CA does have some ugly ramps, at least where I am), a little throttle control is all you need, I've done it in lifted trucks, lowered trucks, six cylinders, 8 cylinders, 4X, 2X, heck did it once in an old limo and a rhyno, heck I've had a jeep cherokee deep enough I floated a jet ski out the back (took a bit to dry the inside on that one)... point being no worries, relax and throttle control. on a side bar my buddy towed my tournament wakeboard boat with his T4R (V6) better than my other buddies F150 (V8)