I don't bother with cold crashing anymore, and let the beer have a long condition in the keg (with gelatin if I am impatient). I don't do much of a diacetyl rest either, because my primary phase is usually pretty extended, unless I need to free up space for any reason and the fermenter ends up sitting at ambient for a few days. In most cases, I'm not in a "churn and burn" mode of lager production, so they all get plenty of time. I do a closed transfer whenever possible, and extended conditioning at near-freezing. My lagers end up crystal clear and gorgeous after a month or so!