I like to hold a little bit, .043 to .047 depending on my opponents. If it ran 11.30, 11.32 and the last time trial ran a 11.34 and the D.A. was within 500 ft. from the last run with 1/2 hour lunch break I would probably dial a11.36 or maybe a 11.35 or 11.37 depending on the other car being slower or faster than mine and which lane I was racing in
it is way easier to slow the car down on the big end than it is to make it go faster if it spins or goes sideways a little during the run