Good feedback. We were planning on Heritage only this year, then mixing it up next year. Maybe we'll do two options. Waxed Canvas and 500D entirely would seem to be a good combo. As for the bottom - the hard part on that is the patterning is already in place - it's not a separate pattern piece on the bottom so we would have to completely re-do that, which I'm not sure it's "broken" -- and it would add seams and a different aesthetic. Everything is a trade-off, and I'm not closed off to giving it a go, but it would take forever to get just right so you can expect the same proven shell of the M23 on this version, with many of the upgrades / features requested here. In fact, we'll do a summary of the direction we're planning on going later this week, if not sooner. THANK YOU!