Paul C. Buff, Inc. Technical Forum

I want to buy one of the softboxes and grid but I am confused about whether to get the 30x60 softbox or your largest octabox both with grids.

Can you tell me main reason to use one versus the other?
I shoot fashion, portrait, pre-wedding portrait and 99% young ladies.
I have a 60'' white shoot through umbrella and your 10x36 stripbox with a grid already.

Thanks

Our sales department will be a better resource than the tech forum for this type of question.