kinda, but what is an agressive ball to a non aggresoive ball. I have seen some people make a ball do a left turn near the pins is this what u mean?
Sorry for late reply Milena.
On one hand, sort of, yes. On the other hand not exactly. <- that answer would help you out heaps hey!!
Explanation for above (cryptic) answer:
An aggressive ball will help a ball do "a left turn near the pins" without 'exaggerated work' placed on the ball. <- so yes.
Though you can go down to an alley and use a house ball (a very non-aggressive ball) and put so much work into the ball (with little forward momentum-speed down the lane) that you can make it go coast to coast (gutter to gutter). <- this is where the not exactly part of the answer comes into it.
What makes an aggressive ball is the combination of cover stock and weight block. Both combine to create larger amount of energy that when allowed to be released, causes the ball to break and enter forward roll into the pins (hook to the left for a right handed conventional bowler). Remember, other factors come in to play (drilling, balance holes … so on …) also.
Think of a bowler (conventional right hander) using the exact same action using the exact same line (placement of the foot, hitting the exact same place on the lane) bowling two balls consecutively, an aggressive and non-aggressive. The non-aggressive would hit say between the 6-10 pin, the aggressive would reach the pocket (1-3 pins) or even over-react hitting the brooklyn (1-2). By making the action the same you cancel out the bowler and the difference in reaction can then be attributed to the ball. This is a good video (For all the usuals to this site it has been posted before – so please not “this has been posted before posts) that explains what I am trying to say a bit better than I am saying it and is more interesting than me also! (
http://www.youtube.com/watch?v=gwFn6eP7bPA).
At 6.35 onwards in the clip explains the scenario I wrote about above.
Some good articles to read if you are really interested are below.
Weight blocks -
http://www.bowl.com/articleView.aspx?i=12811&f=21
Cover stocks -
http://www.bowl.com/articleView.aspx?i=12843&f=21
Hope this helps
Rhyss.