I use both. I have a short 18' 5th wheel that I use for hunting and fishing. It has the gooseneck adapter that I built. I tow it with my old 2001 gas truck with a shorter quad cab and I can see it easily for hookup. The 5th only weighs 3600# so it is light and the frame is stiff. Our good 5th is a 34' ( used when the wife is along) and we use it with the 5th wheel. I tow it with our 2005 Dodge diesel and the quad cab on it is longer so hooking up a gooseneck is more difficult as you can't see the ball without raising way up out of the seat. Hooking up the 5th is easy as you can see everything you are doing seating comfortable in the seat.