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Author Topic: weird weight hole question....help needed..  (Read 2169 times)

jkiser01

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weird weight hole question....help needed..
« on: February 27, 2007, 12:46:12 AM »
Has anyone ever drilled a weight hole in the opposite side of a ball to add side weight to the other side? Let me try to explain. Lets say a ball is drilled up for a RH bowler and when weighed it had 7/8oz thumb weight and zero oz side weight..

Could a weight hole be placed on the left hand side of the ball down in the thumb quadrant to remove some of the thumb weight and add some positive side weight to the other side of the ball?? I know this hole would have to be placed outside the last flare ring to prevent rolling over the hole..

I know my driller said this used to be done all the time back in the old days when ball technology was alot simplier..

Any information on this would be appreciated..
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Ragnar

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Re: weird weight hole question....help needed..
« Reply #1 on: February 27, 2007, 08:49:27 AM »
I've drilled wt. holes on the opposite axis from normal.  I don't remember that it was anything special, or why I did it.  Probably too much side wt. on the negative side would be my guess.  I just remembered - it was on one of the first, if not the first Track balls made.  Black, just said Track w/ a bunch of diagonal lines for a logo.  It was that long ago.
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Edited on 2/27/2007 9:54 AM
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dizzyfugu

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Re: weird weight hole question....help needed..
« Reply #2 on: February 27, 2007, 08:55:59 AM »
You can drill one, but I guess it is not recommendable unless the ball has very low flare. Placement is critical, and there is not much room for error. Otherwise, the ball will surely flare across this hole and lose contact with the lane.
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DanH78

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Re: weird weight hole question....help needed..
« Reply #3 on: February 27, 2007, 08:56:19 AM »
Never done it, seen it done though.  You'd have to be extra careful about placement so you don't flare over the hole, but there's no reason why it can't be done.
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thirtyclean

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Re: weird weight hole question....help needed..
« Reply #4 on: February 27, 2007, 09:25:54 AM »
Just did it on a AU79. Threw it and then, when I saw the flare lines, placed the weight hole at about 10:30 (RH drill, pin at 12:00, cg in track).
Have not heard a thump yet, so i think I hit it on the mark.
This was the 135 degree layout which can be seen at www.rollrite.co.uk.
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jkiser01

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Re: weird weight hole question....help needed..
« Reply #5 on: February 27, 2007, 10:12:33 AM »
OK, thanks for all the comments. Yea I knew placement was going to be everything..
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Coleman

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Re: weird weight hole question....help needed..
« Reply #6 on: February 27, 2007, 10:53:54 AM »
Theoretically a weight hole on the opposite side of the ball will make the ball flip harder, but as I've seen with weight holes in personal experience for most people weight holes really be noticeable if its in the wrong place. You have to look at weight holes in this way ,i think.  In a old urethane ball that might of hooked 5 to 10 boards if you put a big weight hole in it in the right place your looking at 2 maybe 3 boards of hook at the most.  On one of those balls that is a huge amount.  But on modern balls that out of box just hook a ton like 15 to 20, if I put a moster hole in the ball for 2 to 3 more boards of hook those extra few will just get lost and really is not enough to really make a defined difference.  You would be much better off putting an extra hole on your positive axis point and being safe and just adjusting the cover accordingly.  This is just what I think.
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Strapper_Squared

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Re: weird weight hole question....help needed..
« Reply #7 on: February 27, 2007, 11:10:38 AM »
I don't believe in the whole...1/4 of an extra ounce in any direction is going to create any meaningful difference in ball reaction... However, several years back I drilled a ball with a pre-marked MB, using a 180 degree layout.  It ended up with the pin below the ring finger, and the cg in my track (just left of the middle finger).  Drilling the middle finger deeper wasn't enough to removed the excess weight (to be within legal statics), so I was forced to use a weight hole on the negative side of the ball.  Based on a recommendation, I took the ball out and threw it several times prior to drilling the hole.  This established a flare pattern and the bowtie location.  I was instructed to place the weight hole close to the bowtie where the ball wouldn't flare overtop of the hole.  I never had a problem with rolling over the hole or anything... the ball had lots of mid-lane and quite a smooth backend reaction.

I'm unsure that you would be able to put a hole in the negative thumb quadrant, without the ball actually rolling/flaring over the hole...  unless you had a very low-flaring ball or used a very low-flaring layout?

S^2
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