The Pyro is a particle pearl -- it's going to be smoother and less aggressive off the spot than a regular pearl. You may want to go up in practice and experiment with both dulling it up AND also try polishing it to see which reaction you like better. Or, you may just be throwing the wrong ball for those lanes. I've got an Awesome Revs for my particle pearl, and some nights it just won't turn the corner because it either hits friction too early or too late, and no matter where I play the lanes and no matter what hand position I use, it wants to not turn up very hard on the back and leaves weak 10 pins (i.e. last night when I missed the hole just once all night and shot a whopping 647... I couldn't get an early enough read with my pearl equipment, and I'm having problems with the grip on my Special Agent at the moment, so I didn't want to throw it since I couldn't aim consistently with it, so I just stuck it out with the Awesome Revs)