"Hat's off" to you for doing your homework so you can make an educated decision . That's what smart RVers with a lot of experience do!
I towed my triple axel 34 foot cargo hauler to Colorado last December and I averaged all of my fills and the average was 11.3 . I weighed in Colorado and the trailer was 14,000 and total gross weight of 22,000 and I ran 70 miles an hour . That was with the pmcr set at two and two and zero rail pressure. Coming back with the trailer unloaded and running slightly faster my average was 11.6 . Craig
