Thanks. I had always just searched through Google; Nice to cut out the middle-man here...
My question, more specifically, is regarding the "legal to start, legal to finish" concept behind 135.263(d). As (d) does not specify a time-frame which the excess flight time applies to.
As an example, let's say I'm scheduled for a 5-leg, 7.5 hour trip. So let's assume my first few legs each go over-block by .2 due to ATC delays and such. So at my final departure point, I've already flown 7.2 hours, and my final leg is blocked at 1.0. Therefore, before my last departure, I'd know that I will not finish within the maximum flight time limitation of 8 hours.
Some say the "legal to start, legal to finish" applies on a leg-by-leg basis, so in the example above it would not be legal to start the last leg. I disagree. I maintain that since (d) does not specify a time frame, it was legal to start the day, so it's legal to finish the day.