Just thought I'd pass along some observations found during my unfortunate rebuilding after a penalty was applied to my site mid-upgrade, before the canonical tags were applied but after Google had begun indexing content. (insert frustrated swear words here)
A -50 penalty, which is essentially a drop to page 5 in standard rankings, becomes a -500 penalty if you set your account to display 100 listings per page, you then drop to page 5 as well.
So -anything penalties are really just fast passes to page 5 or beyond, at least that's what I'm seeing today. I thought that was interesting.