Instead of a flat front, include a B10 and D2 series model that mimics the pro series. This style provides more uniform lighting for Beauty dishes and soft boxes. These could have a sleeve with a bayonet mount to protect the exposed tube for transport and when shooting with umbrellas, grids, and hard reflectors.
Current the flash bulb is recessed. Sometimes (bigger softboxes + in the beautydishes) you just want a bare bulb. Idea would be to have a part of the front screwable. Without the front part, the bulb is exposed etc. At the same time introduce a better (yoke like) adapter so that the weight of the softboxes is not on the flash but on the yoke adapter. I created a yoke-like adpater by combining a regular RFI adapter and a RFI speedlight adpater (Chris Fain called it the "frankenstein thing" in one of his weekly video's).
