Lift Kit Installed, Now what about the Hitch?

We did the wheel well modification (Thanks Hal for such precise instructions) and installed the lift kit. The 14 inch tire upgrade seems like it will work just fine.

The TM is now 3.5 inches taller between the lift kit and the larger tires. We hitched it up to see how it lines up behind the TV and there is a definate dip toward the TV now.
Is this something that must be corrected even if the TV is level from the WDH?
We are already at the top of the adjustment on the shank.
Cheri