Does Eval have to be all vids?/R+P points

In response to an A2 student's question, I wrote a detailed response including many points on the R+P and how to best maximise marks for it. I've just updated that, and most of these points apply equally to the AS and how its marked; see http://musividz.blogspot.com/2012/04/does-eval-have-to-be-all-vids.html