[quote name='booboo' timestamp='1381597414' post='2241253']
I take it then that the Mono case that takes two basses is probably a disaster in the comfort department? - a shame if so, as it looks like a great bit of kit.
[/quote]
Perhaps, but have a think here - you're looking to put two basses on your back, a not insubstantial amount of weight; what was going to be comfortable?
I have an M80 and I think it's a great bag for protection, leagues ahead of some of the competition - but I never had it in my head to assess how comfortable it might be after an hour on my back, as that's not how I use my bags. Sure, they're for carrying - but I'm pretty sure all bags, by their nature, are about helping you lift and shift things you'd find difficult to move otherwise; and not necessarily about keeping that weight on for the duration, which isn't healthy.
I park close, and they all need to be about protection (paramount) and storage; if you need comfort over distance you might want to think about parking closer rather than blaming the bag