Well im not sure how mine is drilled, but ive had it for around 3 months now. I bowl around 30km/h, 12-16 revs. Started out with the factory finish, work alright down at nationals, but then i polished it up, best thing ive ever done! I find it to have a great late reaction and can carry really well, a very strong finisher. I never really bowled across the face of the pocket and hooked it back in, but this is the first ball ive been able to do it with. Works well on carry down as well. Now its one of the first balls i pull out of my bag, maybe only behind my big time pearl, but i prefer bowling with my xxxcel. I would definatly recommend it to anyone.
Just my thoughts, Hamish