I was able to throw this ball at the Ebonite Demo Day here in Brookpark, Ohio back in the middle of December. You can check my profile for my specs, but just know that I have good speed and a lot of hand.
All of the balls at Demo Day were drilled with the pin under the ring finger and the cg stacked below.
My first impression of the Killer Instinct Pearl was that it is a STRONG pearl ball. I got to throw this ball on 2 lanes with different volumes of oil. One lane was oiled heavily in the middle, with some dry bump outside of 5, and not much dry on the backend. The other lane was pretty much burnt up from earlier play on it.
On the oil lane, the K.I.P. skidded long through the oil, but could not quite make the turn to the hole in the oil. However, if I could start the ball in the oil for about 40 feet, and then bump the dry by the gutter, the snap back to hole was tremendous, and the hit was exceptional. On this condition, I could get a read on what condition I could use this ball on: Good oil in the heads, with crisp backends.
However, after throwing on the burnt lane, it became apparent to me that the oil in the heads would have to be long, because the ball just would not make it to the breakpoint for me on this lane. No matter how deep I got, I just couldn't get the ball to skid. It was rolling at 30 feet!
However, this ball seemed to be exceptional for the less handed players around me. It was a favorite of theirs as a go-long, snap-back ball. For me to get this reaction out of this ball, I would have to throw the pin much higher (above the bridge), and tame the mass bias. This is about the strongest pearl I have ever thrown, and I would caution crankers to put a tame drilling on this ball. It doesn't need help. However, properly drilled, I see this as the skid/snap monster of Ebonite.