This is for the green pearl Groove Reactive. I've been bowling with this ball for about 8 years in regular and not sport condition leagues. It was drilled off label and with the "X" axis hole for maximum hook and flare.
On dry or medium conditions, I have to throw a bank shot off the dry boards on the right hand side. It reacts off the 3-5 board like it's a wall shot. On oily conditions, accuracy has to come into play because an inside shot through the center or outside between the 1st or 2nd arrow maximizes it's oily condition handling and hitting power. No matter what shot you throw and whatever lane condition is out there, it hits like a ton of bricks!
I recommend the Groove series, and am awaiting the arrival of my proactive black sparkle Groove in a few days. During tournaments or sport condition leagues, I utilize the Inferno series, but will review them when I bowl a few more weeks in league and break them in a bit more.