Running directly from VP (No HP) they always crash the first time I start them up ('VP 9.1.3 is closing down').
Start them up for a 2nd time they run just fine.
This is probably also the reason they don't run from out of the HyperPin FrontEnd?
Sorry, I have to say I haven't done any tests with VP913. Have to do this, I know. Actually I have no problems running the backglass tables with VP912 on my cab (running XP) or on my test or development systems (running Win7). Not even any problems running on a notebook with Win8. Do you get any error message?
Great job on the displays!
Great animation on Taxi (is this in line with the 'real BG animation'?).
Thanks a lot. This is no real animation. Haven't found good videos on youtube and still I need a lot experience to read the manuals.
Performance (tweakin' did make some difference) issues noticable on Sorcerer (multiball release) and on Taxi (no stutter).
Cool.
How do you get the score display on screen 3 and remove the Grill?
You have to use "B2S_SetUp.exe" and change the values for "LED Display X Offset" and/or "LED Display Y Offset". Set both values to "0" to display the backglass with grill. Set one or both values to a value unequal "0" and the grill is hidden.
Great way to include 'settings' directly to adjust during gameplay! May be you could incorporate an option to change BG Image in there as well?
Well, this is something I have to think about. I know this is pretty important for you. Right now all the illumination is prepared by the designer while creating the directb2s file. So the background image and the lights have to match. The only way is to put the illu generation code into the server and create the illumination at backglass startup.
As said before, I'm curious to know and try the designer software myself to increase the list of more B2S releases in future. 
Need a few days to round up the designer and of course write a first manual. I have focused the server a lot but now it's time to refocus the designer and start the designer's beta.
Great job done! 
Thanks a lot once again.

I know I should not ask this, but I can't help myself. Any time frame for a release or Beta for the general public. Great job, I see this a such a great addition to the VP community, Thanks!
Of course it's fine to ask this, I would ask it too

. I need a few days to round up the designer and of course write a first manual. I have focused the server a lot but now it's time to refocus the designer and start the designer's beta.