Youtube vide of my fastest lap of the day:
http://www.youtube.com/watch?v=LGXO7BS8LLs
Speed comparison z06 versus my old 1998 c5 (it had 315 rwhp, toyo r888's, Bilstein/DRM coilovers, rollbar, good seats).
Based on the data above, I did a few things better with my old vette:
late braking
higher speed in turns (especially look at the first turns after the long straight & the first two turns entering the mushroom)
Z06 accelerated harder in the straights.