If you use rented equipment, I'd say avoid Diva lights,
I find them not exactly consistent colorswise, dimming them
does no help. You can get a 4x2'tubes for the same
price, and they usually do better. Divas rellay are just
useful when you are working alone on shoots that you
must set up fast or in documentary.
What I like about stronger soft boxes is that you can
put them farer from your subject and get a better
sun or "light from window" effect I think you can put
2x1k in the lowell' riva. Same thing with
shooting lights trough frames will indeed give you
more control.
peace
