maybe i don't go to the same places often enough that they remember me, but a lot of you are saying...if you tip well they will treat you better. But I usually tip on how I was treated while there. If i tip well on Sunday, and i go back in Wednesday, Some other jackoff is working and won't know I tipped well. So if you're not a frequent flyer, I don't see the need to overtip.
Disclaimer: I usually tip for most things deserving. I will also usually overtip a homely looking waitress, figuring she could use some sunshine in her day.