I just tried the layout for an hour straight before reading the thread. I was trying to break out the 5 and 9. I had about a 1/4" gap between mine.
This was a HARD out. Granted, I'm not a good player, but it was full of issues. I got out 3 times, and I think I missed the 9 another 3 times because I got bad on it.
I tried breaking out the 5 and 9 1 rail off the 2 with BIH. If I hit them softly, I often got stuck either behind the 5, or on top of the 9, depending on which ball I hit first. The best result was hitting right between the 5 and 9. This moved both balls away from the CB.
When I tried slightly higher speed on the breakout (so the ideal split hit maybe was not so critical), the 5 would often get near the long rail, which then created problems later in the rack getting on the 6, and also getting from the 3 to the 4. Sometimes it ended up in the way of the CB.
Now, the next issue was I was having trouble making the 3 from the CB about on the spot. But, that's on me, not the shot selection. I kept hitting way too full. Once I dialed it in though, I started hitting it well.
The stroke and speed to pocket the 3 and get on the 4, (with the CB starting near the spot), lended itself almost every time to getting straight on the 4. It was uncanny. This is where the aforementioned bumping of the 5/9 came into play when they blocked the 6. Being straight on the 4 meant limited position options to play on where the 5 landed.
I have it all recorded, but I don't think anyone wants to watch me shoot for an hour! lol. Maybe I'll try to edit it and just post the successful attempts.
Links added (Each is only 2 min long of a successful runout). You can see many of the issues I mentioned above occur during the 3 videos.
https://www.youtube.com/watch?v=Sc8mFaYPiqY&feature=youtu.be
https://www.youtube.com/watch?v=1bim5jEGwe0&feature=youtu.be
https://www.youtube.com/watch?v=My1iAsl_X34&feature=youtu.be