I have a suspicion that bag buying syndrome may be as perilous as lens buying syndrome.
I hardly have enough equipment, and already I can think of three or four bags I just
need to own. If this weren't camera related, I'd be a Seinfeld punch-line. And, being and endless tinkerer, I can think of an equal number of mods.
I watched the video of the Retrospective lens changer in action. It's a very slick shooting bag, but it doesn't work for carry. It's too bad Think Tank doesn't make an R32 - with the height of the 20 and width of the 30. Can you stand two zooms and two primes in the main compartment on the 20, like a three column layout with one a little narrower for the primes?