success!!! I was able to get the burn it back orbit ABSOLUTELY 100% smooth as it should, before today it was maybe 85%. Now it will go around 100% with a single bounce on every shot regardless of angle or type of shot or speed.
I am proud of myself because not even Stern engineering support was able to provide me with a good answer as to how to correct it, but I do not blame them as the possible variables were infinite in a scenario like this.
Here is a video of how it was working after my 1st attempt at fixing it, and this is HUGE improvement when compared as to how it was working out of the box BTW. Pay attention to the rattle as the ball travels through:
in the image below, you can see the burn it back ball guide is flush with the black line on the PF (as it came from the factory).
I would assume that most games are like this and this is fine.
Screen Shot 2021-05-06 at 7.07.13 PM (resized).png
So I went ahead and tried increasing the angle of the ball guide. The amount of room here is limited by two things: the rubber band on the side of the pops and the anchorage points of the ball guide itself (there is so much you can do).
I increased the angle by smoothing out the arch of the ball guide, so instead of being straight as in the previous photo it is now a bit rounder and it looks like this:
C0F87362-65F1-4966-838E-9D01B3F003E8 (resized).jpeg
You will notice how the arch increased and it runs under the plastic cover vs the way it came from the factory... I forgot to take a picture of it but when the guide is outside the game, now it looks like the way it should be (before it was too straight). Maybe this is ok for some games but this was a problem in mine.
And that is it!! this solved the issue 100%. The ball now runs around the burn it back orbit like butter. Literally it is the smoother pinball shot I have seen in a while. lol
I know this might seem obvious now, but it truly was not as the game was built the way it was supposed to be built... but this shot sucked before!
I am happy it works 100% because it is my favourite shot in the entire game.
Edit: played 10 games and the orbit/burn it back did not rattle even once!!very smooth and hear a nice “sweeeeeesh” with every shot!
No more clunks!!!