Spent the whole evening correcting streets in Cupertino and Saratoga. Sometime the TIGER data is 100% accurate and then suddenly the streets right next to it are seriously off...

I just correct points based on the Yahoo photos and don't touch any of the TIGER tags. I hope it's not necessary to touch the 'reviewed' flag to avoid changes to be undone with a later import? There's an edit history after all, right?