Yeah, I changed the friction to zero on all the rubbers as I had the same issue. Those along with the slingshots were the main problem areas. I have seen this on other tables.
Are the star rollovers supposed to be red? All the pictures I've seen look black. If you want to change it, you probably have to change the material to red plastic or any other red option that might be in the material manager.
Darth,
Why are you setting rubber frictions to zero? Just curious. 
Rubber friction should be very high IMO, just as it is in real life. Drag your finger across a clean band, its very grippy...almost sticky. In fact on my tables, I am now using friction of 1. But most authors use .7 or greater.
In the end, you are looking for the band to grab the ball to some degree, and with a friction of zero, the ball will try to slide down it and IMO, ruin the the proper effect that your really wanting. I can also say for "sure", that friction 0 should NOT be used for any VP object at all. It causes very unrealistic, ball action and visuals and just over-all weirdness. You should consider avoiding it avoiding it all costs. Also, you will find that nearly all of the authors with a good understanding of VP10 physics, would agree with this statement.
I would personally love to see this table to continue to evolve, functional and visually. I would really love to see it get some primitive wire guides, more balanced lighting and physics, and other visual enhancements. It is a true piece of pinball history. And its off to a great start.
Just some things to consider. 
One wired thing I am seeing though. When the save gate opens, I am getting constant DOF solenoid clicking, which I doubt is normal compared to the real thing. Could be wrong though. Maybe 32 can take a look at the DOF that is tied to that gate, and see if this can be fixed.
Keep up the good work.
Oh and that new backglass looks awesome. Downloading tonight.
Thanks Stat.