Didn't have the opportunity to plan for KISS C today, but for me, a good plan is always ride around FTP drafting as much as possible, then hit the hill with whatever effort I can sustain, which is usually considerably below my estimated FTP. So I stuck with the default.
Hung with the lead group to the base of the hill and while they dropped me, I felt surprisingly strong on the hill (crushed my PR by nearly a full minute). Cruised down the other side and found myself with just one other racer nearby. We drafted back and forth a bit, then shortly before heading into the train station he seemed to let off the gas, so I pushed as hard as I could for about 20 seconds and got a nice gap. He nearly closed the gap climbing out of the station, but I guess he was near his limit as I was able to pull away again. Didn't think I had a chance to catch the rider in front, but did and was nearly at a full speed when I caught him about 500M from the finish and I was able to hold him off. Shaved about 90 seconds off my London Loop best. FTP bump as well.
Only downside? .02 w/kg over, so I DQ'd out of C and thus I didn't bag the win. The gent I was drafting with and dropped just before entering the train station picked up the win.