what are the standards for hit and run on PT?

what are the standards for hit and run on PT?
if i don't wanna hit and run how long must i seed or how much ratio for the same torrent should i reach?

I think you should seed to ratio 1.0, but if it' impossible I'm seeding 24-48h and I don't have any warn

There are no exacly rules, just seed few hours

ok, i'll try to seed for about a week cos i'm downloading some of the great classic movies from those greate new packS:P