Agreed Scoop.

Sit SC long enough and they eventually get you! Back in August I was called in on the graveyard SC sit at the tailend of my period to cover a mechanical flight where the original flight crew timed out. 1 short leg to an outstation, sleep during the day, dh home that turned into a deviate deadhead ironman. A 9 hr SC would have prevented this.
I actually hate to call the schedulers 2 hours prior to release asking to get off early. Somehow I feel I'm reminding them to use me.

Additionally, if you want to take 2 SCs early in the month and get them out of the way so youre in the next SC bucket (if they really even honor that), this allows you to get them done quicker and potentially commute home on day 2 vs 3.