Yea, this weekend we went from 1/4 mile on Saturday to 1/8 mile on Sunday at our track, And I went to the tower and showed time slips for 10.02-10.05 with 1/8 mile in the 6.27- 6.29 range and told them it would be hard to comply with the 6.40 rule and they said no problem, so we got to run . That 6.40-10.00 thing must be based on Powerglides.