Strider,
Carrydown on lanes so dry that you need to use the Blue Flame or the Slate Blue is a real horror, almost a travesty of bowling justice. I know as I face it often. I'm still using the solid B/G Centaur; it was even better than a stronger but still mild pearl, the DYno-Thane Crisis Pearl, an excellent ball. The B/GC allowed me to go thru the carrydown and around it at my choice.
Recently I've been think of getting another B/G Centaur (I seem to stealing this thread; sorry, chitown), and leave it stock, as I polished this one.
Chitown,
Between the Slate Blue, the Blue/Green and Green Gargoyle, Visionary has some THE very best light oil balls ever made.
For my money I'd recommend a high pin (above the midline) for drilling a SLate Blue and if you have any hand, a 4-5" pin-PAP distance, as this core is not weak. Remember also that this is still a urethane ball, and even though it's a pearl, they are still earlier rolling than some polished resins. The good thing is they are a control ball with good hitting power.
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"None are so blind as those who will not see."