See: Norm Duke in PBA league.  Once again Northface hits in on the head, the Emerald creates ENOUGH change of direction down lane to create effective shape without driving you deeper on the lane like most shiny balls will.  It's great for the heavy hands because it allows them to hit the ball and control it themselves, but it's also great for the lower rev rates because it lets you do what you do best while not forcing you into a catch 22 like other balls will.  Either you don't have the punch down lane, or you DO, but you have to move inside to get it down the lane, which negates the punch down lane by creating angle that your game isn't built for. 

Luke hit it on the head. Drill iq tours with stronger pins say 4 inch. Nothing more controllable than my iq tour solid with a low pin. Money for tournaments. Even great for league as long as the backend are fresh. Can’t wait to drill an emerald to compliment my original iq tour solid.

Well I finally drilled my iq tour emerald with a 4 inch pin to pap. This puts the pin under my ring finger stacked. I consider myself a stroker, tweener with 310 rev rate and 14 mph speed. I’m shocked how aggressive this ball is. It hooks 4-5 boards more than my iq tour solid on the house pattern. I left it in oob condition with the factory 1500 grit polished finish. I mean this thing is clean thru the heads then makes a strong midlane move off the spot, I wouldn’t consider it a skid flip reaction because it rolls through the oil without squirting. It has incredible continuation thru the deck with no quit even with an up the back release. This thing really hooks. This will be a good ball for me on heavier volumes or carry down when my benchmark iq tour solid starts leaving weak tens. Most of the reviews say how smooth, controllable the emerald is. So that’s why I’m a little surprised by my ball reaction with it, especially with a low pin arc type drilling. For me it’s a hook monster. Has anyone else found this aggressive reaction with their emerald, or maybe I just got freak one?