Local knowledge (although I went walkabout on the way to 1 as I knew (thought I knew) where it was and wasn't really using the map.
Took splits as well.
I wasted a wee bit at 1 as well, those towers aren't as easy to see as you expect. Also hesitant at 4 and 5 (not on correct knoll?) Thought 9 was on clearing so wasted a wee bit - before I read control descriptions.