Ticking has returned for me but only once every so often.... When I take short trips or let the car idle after start up when it is cold outside.
Cure for ticking = longer drives + no idling after start up
Do as the manual says just start driving after you start the car even when its cold outside.
These are the only things I do and my car rarely ticks now. It was ticking like crazy when I lived 3 miles from work. The engine never fully warmed up and I am pretty sure that is the biggest problem. I also noticed when it started getting cold out this last winter that letting your car idle after start up to let it warm up brings the ticking back as well.