There seems to be a lot of opinions on what factor has the most influence on a hook

here is my opinion.

Statement
   The numbers are to generic and do not take in account enough variables. They are inaccurate generalization for all blowers. I state that you can not give a constant factor for all bowlers. you can devise factors for major groups
of bowlers abilities.

Hook characteristics
   skid, Hook,Roll

Hook factors
   Cover - amount of friction
   Core - ball dynamics of imbalance
   Bowler- rpm,speed,tilt,rotation.
   Friction- Primary affect the transitions between hook characteristics

influences on Hook factors
   Cover - Friction
   Core -  aides in determining the hook shape by influencing length and the
            amount of friction for the cover.
           
   Bowler - determines how much friction the ball comes into contact with the
            lane and where.


hook Factors
 bowler plays down and in only. limited versatility. can only change speed
 

• Cover = 80%  
• Core = 10 %  
• Bowler = 10%  

 Bowler plays small area can change speed and axis.
 

• Cover = 60%  
• Core = 20 %  
• Bowler = 20%  

 Bowler can change speed,axis,tilt.
 

• Cover = 40%  
• Core = 30 %  
• Bowler = 30%  

There are dozens more variations on bowlers. these are general representation of the majority of bowlers as observer by me.

Conclusion
   The cover is always the most important. How much will depend on the
   bowlers  versatility and the core factor when friction can happen.
   It is inaccurate to rate a covers,core influence at
   a constant factor when the bowlers ability is a great influence


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maybe even breaking down the hook characteristics and applying factors.

ie:

for a one dimensional bowler:

skid

• cover = 80  
• Core= 10  
• Bowler = 10

hook

• cover = 70  
• Core= 20  
• Bowler = 10

roll

• cover = 70  
• Core= 10  
• Bowler = 20

etc...

now some one may want to chart a dozen different bowlers by the three acceptable bowler styles: Cranker,tweener, and stroker. and cross reference them with versatility factors.

Just my .02c


--------------------
"deserves got nothing to do with it."
-- William Munny

Edited on 7/27/2003 10:16 AM

my statements may all be off. but it's the idea. this analysis is off the top of my head. however friction is the  primary factor in Length and hook.

speed affects when it will grab and the cover affects how much. the bowler dictates the speed. less friction and slow speed = 45 break point. less friction and high speed = 55 foot break point.

the core helps determine the shape of the motion. sound right?

could all be wrong
--------------------
"deserves got nothing to do with it."
-- William Munny

Yeah I'm always trying to refine the way I think about ball reaction as that will determine my arsenal.

basically going by a balls over all "look". I have found weak MB, Symmetrical, shorter cores drilled with pin under ring( sometimes above) and CG 2.5" from grip centerline is a very versaltily drilling.

I have 2 balls that I can cover about 80% of the lane conditions I see, with a couple of releases. Now I'm looking to fill in the gaps(maybe) with cover/core/drillings. basically taking stronger covers and drilling them weaker to fit between the balls I have(see profile).

this should give 2 good looks on any oil pattern. and fill a 6 ball bag full of balls that combine with my skills can cover anything.

so based on my self diagnoses. I think cover = 60%, core = 10% and Bowler = 30%
That is only for weak core balls. the freak core I would rate that 30% and cover 40% for me. That's how I determine my line ups from now on. Then with some help from BR users to pick certain balls that fit what I'm looking for, I set.

at least for now. Until I come up with some other goofy approach to picking an arsenal.
--------------------
"deserves got nothing to do with it."
-- William Munny