i've been bowling for 14 years now. i bowl 4 nights a week: sunday (184), tuesday (190), wednesday (228), friday (213).
i bought this ball a little over a year ago. i was looking for something to replace an old danger zone (that i loved dearly). but i was looking for something that i could get more movement with. it was drilled to be aggressive on the lane with a lot of hook potential (flare of 5"). it was great when i first rolled it out on the lane; smashing the pins. it was also a ball that would come back to the pocket even if it was fluffed a little outside of my target, thus becoming a great "area shot" ball. my average went from a 180 to a 190.
however, after about 6 months, it wouldn't do anything on the lanes. i was only using it one night a week, and city and state tournaments. we tried almost anything to get a reaction out of it: cleaning, buffing, polishing, redrilling. nothing worked. it's gone kaput. now, i use it on dry lanes only, playing up the boards. it doesn't hit as hard as it used to. i don't recommend this ball unless you get a new ball every 40 games anyway.
did i mention it's 15lbs and i roll it about 14.5 mph? lol