A few of us were discussing this at the track today so we looked at resulting lap times pretty carefully.

Bob you met Phil Zimmerman at Cleveland this year,
he ran 43 laps with a fast lap of 10.7 and a consistency of .195,
he finished second to a fast lap of 10.7 and a consistency of.190
and I rolled in 3rd also with 43 and a fast lap of 10.7 but only a .245 consistency

and taking my consistency out to 35 laps yielded .295. Studying the #'s if my 12 laps at 11.1 had been 11.0 (excluding a bad marshaling incident) all 3 of us would have finished ~ .8 seconds apart.

Conclusion is it may be easier for me to concentrate more on those dozen laps and not sweat trying to pull a 10.6 second lap.