I do all of the things you have mentioned and don't have many issues at all. I don't use padding though and actually never did on my Tivo's either. I have quite a few SL's I have Autorecords (yup I still have 2 of them recording stuff every day) I do searches for things. The bad thing has been not all of us have all the same issues all the time, which probably makes some of these things harder to debug. Hopefully they will continue the trend we have been seeing where things are getting better with each release.