Did not realize you'd had the Bitubo's previously. If you like simple, the Legends would be the ticket to having instant adjustment for different loads and/or road conditions, on the fly. Jerry has the latest version of the Legends, if I'm not mistaken, which not only have larger air boots, but also rebound damping adjustment. Generally, rebound damping is a set it and forget it thing...it's the compression damping that requires the most tweaking, regardless of brand. The Legends make that effortless. I had the larger boots on my last bike and they did make a difference, so them and the rebound damping should be great for you. But, they are pricey.
Good luck with whatever you decide, and have a great time at Ribfest...tell everybody Goober says "Hey"...eat a rib or three for me.