I've been playing about 3 years now, and carry a 165 average, but improving all the time as I play often and take lessons. How do you play a deep inside line? I play the track area and an outside line almost all the time, but in some conditions I can't get a consistent pocket delivery there. I've seen the better bowlers play between 17-20 out to 5-10 and back in, but I have not been able to do that. Is this based more on equipment, or is it something you can only learn to do as you get better? The ball I use is the Ebonite Vortex and the Hammer Sling Blade. Any tips would be appreciated, as I would like the ability to play that deep inside line. The only thing I can do with a line like that is take a tight shot right at the pocket. Thanks! Oh, and I'm buying a new ball at the end of the week, so if you have any ideas to improve my arsenal, let em fly!!