I have a 303 and when the slide with the table and chairs is in the floor is raised so when you stand on the floor the table and chairs bounce because of the space between the two floors. I was wondering if this is normal because if you travel down the road your floor is flexing and your furniture is bouncing all over. The slide comes in top first then the bottom and when the top stops the bottom seems to lift up before it seals. Is my slide that far out of adjustment?