Just missed it
 

I keep my backup hard drive off most of the time, to save energy and keep the noise down. But, I almost always forget to turn it on before my scheduled backup, so I have to reset SuperDuper manually.

It would be nice if I could turn on my drive (say, within 10 minutes) and have SuperDuper start the scheduled backup automatically as if it had been on already.

Thanks for the suggestion!