Adrenaline gets you geared up to smash a race, and it always seems to mean I monster the first mile.
I like it a couple of miles in when things calm down a bit, you're at the right pace, amongst the right people.
There's always a time later on where it starts becoming very clear what your mission for that race is, whether it's to beat a certain person, or the time you can get is very black and white!
Ric, hard to disagree with working on the speed, as that's something that won't go on forever, whereas to some extent, you can always go for longer. I know a chap who seems to do it the other way round, doing monumental mileages and is ALWAYS talking about how he'll add speed later. He's around mid 40s, so not entirely sure how infinite he thinks his ability to add speed will be 