Aside from the misogyny Samir is brilliant, I was really rooting for him to do well yesterday, the guy is clearly very talented, both at running and at winding people up.
15w - it's Brighton and there are pacers, I do worry that the 26.2 mile equivalent effort to yesterday will either have me heaving on the finish line or walking the last mile. But you're right, I have to go for it, with the pacers it's the best chance I'll have.
I ran the bath half yesterday and went through the first 10k in 40:10 beating my (clearly slightly soft) 10k PB by 22 seconds, finished the half in 1:25:18, which was at least 19 seconds slower than I hoped. Don't really think I could have ran any faster on the day, insufficient beleife. Seems pretty borderline for a sub-3 attempt, :-/
On my 610 the pace fluctuates for maybe 30 seconds after it claims to have found the satellites, if I'm not in a massive rush then I just stay still until the pace settles on 0, then I start the garmin and start running. If yours isn't settling then maybe you should move to a more exposed area where it has a clearer view of the sky?