I’m laying in my bed for the first night in our new 2021 Columbus 329DV. It’s a 37.5’ 15,000lb fifth wheel that we are pulling with a 2020 F350 CC SRW long bed FX4 with the 6.7L diesel and 10 speed transmission. I got 12.6mpg pulling it from Turlock California to Santa Rosa California when we brought it home from the dealer earlier. This will be our full time home for the next four years. It’s just the wife and I with our Boykin pup so it’s plenty of room for us. She traded her Subaru Outback in for a Subaru Ascent so that she could tow the bass boat if needed for trips. We’ll see how that goes. So far so good on this purchase!