I thought the B in BPE was Vic. That’s why I know this head only needed some small tweaks. If I were to guess only being able to see the picture I posted it came down to short-side shaping. The damn short-side is so small in these heads when you take runner cc off the floor you compound the issue. At 400 plus FPS it will skip the short-turn and crash the good air at the back of the bowl shutting it down.