We just picked up a new CL21RBS towing it with a '16 Tundra 5.7L and using a Blue Ox load leveling sway control system. Mounted easily and tows like a dream, not even a bobble at interstate speeds going by semi trucks, bus, etc. Our truck didn't drop much putting trailer on the ball, so weight distribution probably not much of a need in our case anyway. Sway control is a big deal in my mind though. We have never towed our rig without sway control, so can't give comparison. We figured $300 for a high degree of certainty sway not likely to occur under widely varied conditions; especially considering what is at risk was a worthy insurance investment.
Found our year old Blue Ox on Craig's List for half of new price. Several brands were listed in our area when we were looking, may be worth checking this source near you. Good reviews on e-trailer.com for most any component you want including several brands of sway / load leveling devices.
Hope this helps.
