scott.kendall AT abbott DOT com wrote, in part:

> weekly on fri night and sat night with freq set to 2 or 3 days. 
>  monthly also set to fri and sat, same time window, with freq set to 
> 23 or 24 days and so on...
>
> this allows it to run fri and then retry sat if it fails on fri.  with 
> the shorter frequency, it makes it run a full on fri even if someone 
> manually launched a full on, for example, tuesday (instead of going 10 
> days now in this example between fulls).  it also "shifts" the backup 
> back to fri on the following week after it fails on a fri and then 
> runs ok on sat, instead of now running every sat.


But if both freq sets are due, the longer will run on Friday and then 
the other will run on Saturday ... so you'll get two backups some weeks. 
Maybe what you wanted; maybe not. ;-)

cheers, wayne