I have a friend who is a HIGH speed, medium revs player.  He wants a ball that will hook off his hand and continue to hook all the way through the deck.

  The last few he has drilled have been aggressive covers, but drilled with a stacked type drilling.  He asked me about a few balls last night, then asked me if he got one, would I set it up for him.  Not wanting to disappoint, I told him I would try.

  I don't know his pap yet, but I am going to find it before we drill anything, so that isn't a problem.  He sounds like he has settled on the storm T-Road solid, so it looks like it will be a symmetric drilling.

  What is the absolute most aggressive drilling you can put into one of these things?  Is it as simple as 3 3/8 X 3 3/8 or is there some secret thing that I need to know.  Since the ball doesn't have a mb to speak of, would it be effectual to use the cg, or should I measure of to the virtual mb placement and use that as a reference point?

  He has used several aggressive balls recently, including a lane#1 carbide plus and a MoRich seek & destroy.  He liked the seek and destroy at first, but said it seemed to slow down quite a bit lately and he wants something more aggressive than this.  I was thinking more along the lines of very high differential ( as in the visionary immortal ) to help get it going early and keep it going for the length of the lane.

  Wanted to stay away from particles and go with a dull, solid reactive so the maintenance would be simpler.  He ain't a big ball maintenance kind of guy, but he does clean his stuff after he gets done for the night.
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The most aggressive drill is pin on the bowlers axis. This is instant roll, with all skid provide by the ball's cover and the bowler's ball speed and tilt. Such drillings usually do not flare.

The most aggressive flaring drill that I know about is the one Ebonite used to call Rev Leverage. Pin was at 3 3/8" but it was on a line from the center of the grip to the bowler's PAP. The CG was located straight down in the thumb positive quadrant and it required a weight hole, usually 6 3/4" over to provide even more flare. Of course high track bowlers need to use a higher pin position.

This Ebonite web page has a reference to Rev leverage":
http://www.ebonite.com/techcenter/RandD_detail.php?PRKey=265

See Drilling #3 on this page:
http://www.buddiesproshop.com/default.aspx?c=39
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Unofficial Ballreviews.com FAQ

Go with a 4 3/4 x 2", pin over the ring, CG down using a 4" pin out ball. =:^D