I don't know if we have the I or II,but we put a full slide in the front basement and a half slide in the second bay door as soon as we picked up the coach. Since the slide out is over the bay doors this really allows you to access the storage with out straining as much. We have a basement freezer/beer cooler on the half slide and it makes loading and unloading that much easier. I am able to put a 6 foot step ladder between the two sliders by moving the large slide all the way to the road side. We can also carry extra refreshments on the half slide behind the freezer.
The only minor problem we have had is when there is too much weight on the large slide. It will flex and cut the rubber gasket around the bay door.
Mike and Dar
06 Endeavor 40 PDQ
lots of sand toys