Stevie, I don't mind being 10th after 1 mile but I would be very impressed with the other runners who had beaten me to that point. I don't mind getting passed by a lot of runners either. Eventually I will be matched to runners to my true HM level instead of my 1 mile level.
Toro, garmins are heavy anyway. Do you want to take the blame for a poor performance?
PLEASE 'take on board' the advice given.
You aint gonner be matched to runners to your true HM level if you go out at 4:20 pace. You'll blow it!