Something that would be nice for the Link Check would be to add these choices to the select box to allow you to narrow your results to show only:

Sites w/ Rlinks
Sites where links page is not found
Sites that are not up

So, you could still set your interval but select a range that will only show certain sites.

This would A) make you happy because you could see all your sites with Rlinks and help you quickly find the sites that are showing some form of "non-compliance".

Thanks!