An INT DIFF has to be about .0010 before it has much of an influence (before the ball actually "acts" asymmetrical). Many brands have INT DIFFs near .009 without even noting that the ball is asymmetrical at all (especially if you include post-drilling numbers and especially with the use of interchangable thumb inserts). That may be why it isn't on the forefront of everyone's mind when offering 411 on that ball. Not that it shouldn't be, just my speculation as to why.
One of my customers shot 299 with the pearl last night. He hearts that ball.
