Handles on B10 cases are woefully weak. Needs much stronger stitching and straps.
My handle has snapped with minor use - with the case normally in storage or on a magliner.
Really not good quality.
Doing Architecture there is no limit to the power needed in shooting large structures. It would be great to have 2,000 watt strobe or higher. Also, have a battery source to operate the strobe so an outlet wouldn't be necessary.
If you don't end up going to USB-C connectors, a nice improvement in the B10/+ battery would be to make the hole where the power plug goes in sloped or designed in a way to make it easier to plug in when the environment is dark. I've added a white paint ring around the hole to make it easier to find, but I'm sure you could come up with a better solution.
The A2 and A10 are fantastic for their portability; however, there is no means to recharge the battery away from a mains supply.
Add "in-flash" charging.
Could be implemented in one of several way:
1) USB-C PD input to the flash, flash can power itself from a USB-C PD battery pack and charge the installed battery
2) USB-C PD input on the battery, battery is recharged direct from USB-C PD battery pack. Has the advantage that the battery can be recharged away from the flash
3) USB-C PD input to the charger. Could likely do away with a mains charger, and use a USB-C PD mains adapter instead. Or could use a USB-C PD battery pack