[dcb]

I might be on to something with the min vss pulse spacing per half second approach mentioned in post 3 & 4. Need to do some more experiments though. An occasional glitch on the instant reading is ok, one can filter them out without much fuss, but it needs to be more stable than it is if you are trying to dial in best cruise mpg.

I'm not wild about just increasing the size of the sample pool either, or inviting floating point math to the party.