After 150 miles of short trips for me the ticking seemed reduced. Last weekend I let my son use it to go to Charlotte and bring it back a week later. All went well going down, but on the way back he noticed a sound at idle when he got to his apartment. He brought it out and it sounds like those two lifters have collapsed, makes a knocking sound at idle now from that spot. Sounds fine over 1400 rpm, but at idle you can hear them. Guess its time to take a look and see if it appears some lifters and springs maybe could buy some more time.