RevLefty (& Boomtown),
I bought one when I though I'd need a major oiler. I drilled mine a bit stronger than Boomtown's. Pin at 4", MB at 4.5", pin 2.5" above midline.
I cannot use this monster - it's too early and too much of turn at the backend.
RevLefty,
YOu didn't indicate how yours is drilled.
Could your house shot be changing and your surface changes be not in sync with oilchanges???
The stock surface is 1000 grit (abralon or sandpaper). Unless your house oil pattern is drenched in oil, with your rev rate, I'd be very surprised if you could use this ball. This ball is stronger than a Wizard. I also have a stock surface, 800 grit, Nemesis. While the Nemesis is early, the Threshold is earlier still and makes much more of an aggressive turn at the breakpoint.
I'd suggest some polish over that 1000 grit or if that doesn't work, then 1500/2000 grit PLUS polish.
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"None are so blind as those who will not see."