E2 WDH model recommendation

The closer to level the better. Just a few degrees or inches of tilt front to back will affect the settings. Take your wrenches, pad, and tape measure to a schoolyard on a weekend or a churchyard on a week day. Proper setup will take several iterations. A PITA but it's worth it. 

What is the best location to check for tow level? I have a bubble T level that I set in the middle of the floor for set-up, but I find that varies from level on the tongue portion of the frame for towing. AND that is also slightly off from checking level on the frame toward the rear of the pod. AND and I find that if I adjust for frame level at the tongue it just "looks" a bit off.

In fact, it makes no difference in the real world. If it's level at any place (floor, counter, tongue) it will be close enough for you and the fridge. The only time you might want to be more selective is if you're running a calibration on tank levels for a SeeLevel gauge system. Even then, replicating that degree of levelness at a campsite is of marginal value. I usually check on the floor or counter top for side to side level, then with a bubble on the tongue for front to back. For towing aspect, anywhere is adequate.

Originally posted by techntrek I've noticed slight variations from the tongue to the floor.  When leveling for comfort I use the floor as my measuring point.  When setting up the WDH I used the tongue.

Yes, there can be slight side-to-side differences between tongue and floor due to frame twist and/or bubble sensitivity. Worse on two axle trailers so I use the floor for initial cross leveling, then use the bubble on the tongue after uncoupling. That said, final leveling should always be done with Fred's frozen peas .

Update - I bought and installed  the E2 600. After I got it set up I went back to the dealer where I bought it to have the shank bolts torqued to 250 ft lbs. No way could I do that with my tools.