Vinsil, the point I was trying to make is the normal stuff that RVs come with isn't very durable and only survives a limited amount of time.
Some of us upgrade, in my case so my DW won't have to get up on the top of the roof in a short skirt to cut it off when it pops out of the groove from driving down the interstate. This happened when she took it out by herself with her mother. Well, I'm sure not everyone's story is as colorful. ;)
But, the point is being a tight fit isn't a bad thing.