Some playing notes based on my first weekend with the machine, as well as watching Jack's streams:
If you hold the left flipper on plunge, you can allow the ball to dead bounce off both flippers and into the Raptor pen. It takes just the right amount of speed, though. Too soft or too hard on the plunge and the ball may take a bad bounce into an outlane. This also works when hitting the right orbit, but you won't have ball save to help you out.
It is true you only need the middle drop target down to hit the T-Rex shot (easier from right flipper, BTW). However, if the right target is still up, the ball tends to brush it when the T-Rex drops it, and it can get redirected SDTM. Beneficial to get the right drop target down before hitting T-Rex. The ball will safely come back to the right flipper.
Multiballs will open a paddock but not continue them if they weren't previously opened. Multiballs will advance paddocks if already opened. For this reason, I try to open all five paddocks before starting a multiball.