It's a highly polished pearl. How aggressive could it be, particle or resin? As a polished pearl, it needs dry to make its move; it is a high flaring core and most people experience a good sized hook with it. That high pin position is going to add to its length.
"The ball doesn't like carrydown at all."
Not a surprise with a polished pearl, particle or not.
"on heavy oil with carrydown"
Most solid particles have trouble with that; not sure why you expect a polished pearl to handle that condition.
May I sincerely suggest a newer Vendetta Partile solid to cope with this lane condition, with strong pin position, say 4" from PAP, and online between ring and PAP and CG kicked out in the neighbor hood of 2.5-3" from PAP.
"Cranker speed with stoker revs" makes this ball even harder to get into a roll.
Did someone suggest this ball for heavy oil? My friend has one and even with his high track, and the pin is above the ring finger, the ball is wonderful on medium conditions; stronger than his low RG, resin pearl drilled stacked leverage. I'd suggest trying it on a medium oil pattern.
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