I've been giving that approach a thought. Do you use it for color or b&w?
What sort of output are you getting -- what exposures are you able to obtain?
So far I've been using it only for B&W with my 4x5. My exposure times are all over the place depending on subject and set-up. Mostly on portrait work my exposures are in the 1/15-1/30 sec. and f-11 on iso 100 film. I need to get to those times on iso 25 film though, so I'll be adding light when I can afford it.
BTW: the big kid in my avatar is my hero, my son, who proudly serves us in the Navy. "SALUTE"