Thanks for all the great advice and encouragement, everyone!!
I ran a 2:19:2x half marathon this morning, good enough for a plaque for 3rd female 40-49 in a very, very small field.
That's a 7-minute PR for me!!
My half marathon time came down a total of 17 minutes in 2007 (so far) in my series of five half marathons in seven weeks. That's five out of five DONE under 2:30, each and every one!!!
Yes, I did take along the Garmin, and it actually helped my pacing enormously because the entire race after Mile 4 there was no one in sight in front of me.
Bath now, long report with photos some time later.