Seren, what do you do with full body shots on the lastolite? I have their stupid expensive vinyl floorcloth (waste of 150 bucks) and it looks just awful in the pix. It's always grey or if I try to light it the lower limbs are overexposed. What works for you? I'd love to do it all in-camera, but the floor always adds too much time in post.
Maybe I should shoot no full body shots.

Um, as above. I bought £14 ($25) worth of white vinyl for the floor from a fabric shop. It doesn't velcro but I don't really care...
And I throw an extra light on the feet, just as you would if you were using paper.