Based off my experiences here, but also based off what I've heard the pros talk about in those videos about PBA Experience leagues and what equipment they suggest. Let's say I'm facing a wet/dry shot. A strong drill on a strong ball might have a tendancy to want to grab the dry too hard and give me a little bit of an over/under and make the ball want to read too early to carry. Throwing a weaker drill on the strong ball will give me more control off the spot, but the strong core and cover will help the ball downlane. Conversely, taking a weak ball and drilling it strong will give me the hook that I need, but its reaction characteristics might not suit my game. Since I have a lower rev rate but a good amount of speed, I need some help from a strong, lower RG core to get the ball to rev up in the midlane and turn the corner. Even with the weak drill, the strong core is still going to give me that help. However, if I take a weaker ball and throw a strong drill on it, it may not have enough motor to give me the reaction I need to get a strong entry angle. That's why my Special Agent is my go-to ball. Even with that super low RG core and strong cover, I can get good length and control thanks to a 5 1/4" pin to PAP distance, but I still get excellent recovery and a VERY hard continuation on the backend.
