Your 40' fiver is likely just a bit longer than me with a 30' travel trailer. I had a 36ft 5th and had an easier time backing that into spots and beside my house than I do with the current trailer. 5th wheels are the way to go as long as you don't need your truck bed for other things and don't mind either rolling with the hitch on board or lugging it in/out all the time. Those are the reasons I went back to the TT. Once I'm out more I'll be back in a 5th.... unless I hit the lottery and can afford I nice diesel pusher :)