The woodland section is ok for the lines, but it is virtually impossible to get past so you can hold everyone up anyway through there.
You want to look at the faster flowing corners (double apex right at top of start finish straight) and the right hander leading to the gooseneck.
These are the areas that can really gain you some time!
Believe me,i'm not fast at the moment and i'll be showing my mates around too so you're more than welcome.