Long slide factory mod
I have no bulletin number, and I have no pictures yet, but there is a mod that the dealer did to my unit that was recommended by the factory and of no cost to me.
I have a 2011 337DS. The driver side slide is nearly the entire length of the unit. Sliding in and out was causing "some" of the long slide units to develop a ripple in the bottom edge of the slide. Visually, they were wavy. Mine wasn't yet, but they fixed it anyway. Here's the fix: under the entire edge of the slide they place a piece of angle iron. You can't see it because there is a small piece of fascia that hides it. But it should prevent the ripple from developing.
If you have a Georgetown with a long slide, you might inquire about it.
If I get a number code for the mod, or pics, I'll post them.
2011 Georgetown 337
2009 HD FLHTCU
2007 HD FXSTC