I just received my JP Prem a few days ago and my T-Rex ramp exit opto didn't work out of the box. So yeah, after a 6 month wait to finally get the game it's pretty much worthless because you can't start a mode or do anything that needs the left ramp to register. I thought the same thing you did about maybe the QA is lacking a little to get the games out the door. I can understand over time something failing or small tweaks here and there but an opto not working straight from the factory? I think that is poor QA. I guess I can just play the Trex events over and over until my new part shows up someday.

Thanks for the suggestions Mark, I did pull the glass and inspect the optos. They were both installed correctly and seemed to be aligned perfectly. Checked the wires and reseated them. Nothing registered in test mode. I do appreciate Stern making things right, they always have but just frustrating of course. They are sending me new optos, just takes a while to receive them.

I agree with this....I ordered the Retro Refurbs blue version and they look great in the Premium. Matching the blue landscape was my priority but I really liked the Jurassic Park gate artwork and also the volcano.

Freebird did you ever look into this further? After playing today, I noticed my T-Rex doing the same thing. Sometimes after the intro roar, the jaw stays open. During game play the jaw will sometimes stay open at times. Also, once T-Rex Multiball starts, T-Rex tries to do the chomp but the jaw stays open a little and the ball falls out of his mouth on the left side. The ball is supposed to stay in the mouth longer for sure. I have the same binding if I open the jaw fully by hand but also wonder if the magnet is not working as it should or is it just the lower jaw not closing like it should.

Let me know if you figure anything out. It was fine for a few months but just started doing it.