It was indeed a classic Bogs, which I watched unfold ahead of me, having cunningly stashed myself in a comfortable last place by CP4. (This was thanks in part to a deliberate but rashly inventive route choice to CP3.)
Having been all alone bar the sweeper for some time, I was surprised to come across a number of runners between CPs 5 and 6, all of whom were travelling in different and highly improbable directions. I even saw runners pass each other on the same path, going in opposite ways to get to the same checkpoint!
Reservoir Bogs is always fun, and today's did not disappoint.