Welcome to the forum! And yes, I'm struggling with that underbelly cover as well...
I hooked up on Friday for the weekend away and noticed water draining from 'above' the cover (between the cover & the frame). I'm tempted to punch a few drain-holes in there but not sure......
3 kids and Buddy the Dog;)
2010 JayFeather 23K
05 GMC Envoy XL