win a ball from Bowling.com
« previous next »
Pages: [1]

Author Topic: Reducing axis rotation  (Read 3208 times)

lefty50

  • Hero Member
  • *****
  • Posts: 1822
Reducing axis rotation
« on: February 10, 2008, 05:33:41 AM »
I've been reading thru all my notes over the years, currently working on the problem of sliding past the breakpoint due to excessive axis rotation (90 degrees), especially on heavy oil. I'm left handed, and have unusual side finger pitches from cracking my knuckles...
ring = 7/8 left and middle = 1/2 left

From my notes, I seem to infer that adding right thumb lateral would reduce axis rotation, is this correct? Also, possibly same result by slightly shortening span???
Thanks
L50
--------------------
Signature? I don't need no stinking signature...

Edited on 2/10/2008 2:34 PM
Logged

 

Sawuser

  • Hero Member
  • *****
  • Posts: 3700
Re: Reducing axis rotation
« Reply #1 on: February 10, 2008, 05:19:29 PM »
lefty, are you sure it's axis rotation or could it be too much tilt? I always struggled in heavy oil, but now that I have decreased tilt & stay more behind the ball with forward roll I have much better success!
--------------------
Righty
Think about it!

Logged

bluerrpilot

  • Hero Member
  • *****
  • Posts: 1235
Re: Reducing axis rotation
« Reply #2 on: February 10, 2008, 06:30:30 PM »
Adding right lateral should let your thumb clear faster alowing you to stay behind the ball better reducing rotation.

You could also add some surface to your equipment and/or slow the speed down enough to let the ball read the lane.
--------------------
Team HammerHead
2008 USBC Nationals
ABQ, NM

"USBC is concerned that technology has overtaken player skill in determining success in the sport of bowling"
Logged

lefty50

  • Hero Member
  • *****
  • Posts: 1822
Re: Reducing axis rotation
« Reply #3 on: February 10, 2008, 08:02:53 PM »
Thanks. I defintely use surface and slow down, but still need to address the basic problem. I'll try adding right as a way to help stay behind the ball.
--------------------
Signature? I don't need no stinking signature...
Logged

JohnP

  • Hero Member
  • *****
  • Posts: 5819
Re: Reducing axis rotation
« Reply #4 on: February 11, 2008, 10:41:00 AM »
quote:
I'm left handed, and have unusual side finger pitches from cracking my knuckles...  ring = 7/8 left and middle = 1/2 left


Are you sure these pitches are correct?  We normally try to keep at least a 3/4 differential between the two finger pitches to avoid having the finger holes run together at the bottom, your's is only 3/8 diff.  Both high axis rotation and high axis tilt (small track diameter) make the ball go longer before breaking.  To reduce the rotation, you need to get your fingers further behind the ball, say to about the 7:30 position at release.  For 90 degrees of rotation, you are at about the 9:00 position now.  To give an example of the difference (although with right handers), Pete Weber has almost 90 degrees of rotation.  Norm Duke and Walter Ray are probably at about 25 - 30 degrees with their normal releases.  --  JohnP
Logged

lefty50

  • Hero Member
  • *****
  • Posts: 1822
Re: Reducing axis rotation
« Reply #5 on: February 12, 2008, 07:11:58 AM »
HI John. Yes, my pitches are both odd and extreme due to all the knuckle cracking I did as a teen. Paying for it now... I've been trying to get more behind the ball, but these pitches make it hard. I tried to explore in this forum what most people call an offset thumb to flatten my hand on the ball, but two things happened:

1. The trolls came out and started debating that there's no such thing.
(editor's note, TROLLS... STAY THE HECK OUT OF THIS THREAD...)

2. Was also told that flattening the hand with my pitches would result in more rotation, not less.

Not sure what to do next.
Thanks
L50.
--------------------
Signature? I don't need no stinking signature...
Logged

JohnP

  • Hero Member
  • *****
  • Posts: 5819
Re: Reducing axis rotation
« Reply #6 on: February 12, 2008, 10:28:12 AM »
For a leftie, added right lateral thumb pitch will make it easier for the hand to stay behind the ball longer, but you still have to avoid rotating early.  The pitch change just makes it easier.  --  JohnP
Logged

Leftyhi-trak

  • Hero Member
  • *****
  • Posts: 2288
Re: Reducing axis rotation
« Reply #7 on: February 12, 2008, 06:41:36 PM »
Do you kick out the mass bias or cg a lot? This will aid in decrease of your axis rotation also.
Logged

no300tj

  • Sr. Member
  • ****
  • Posts: 498
Re: Reducing axis rotation
« Reply #8 on: February 12, 2008, 06:58:27 PM »
I can tell you that lateral pitch in the thumb will definitely allow you to get more roll on the ball. I'm a right hander with more lateral pitch than the gauges can read. 1 1/8 we guess. This is probably more than you want to try, but it allows the ball to sit in the palm of my hand. You can still get around it when you want to. I'd say it's worth a try on a ball that is for oil.
Logged

YeahHossNV

  • Hero Member
  • *****
  • Posts: 626
Re: Reducing axis rotation
« Reply #9 on: February 13, 2008, 11:03:11 PM »
What you should try is moving your finger and thumb laterals 1/8 right. The problem is that because of your hand condition, your pitches are causing your hand to have to come around the ball. I know that your pitches are to stop discomfort but if your grip right now is not causing pain, as long as you move everything an equal amount in the same direction you should not feel any discomfort.
--------------------




Coast 2 Coast
Balls - Shoes - bags - accessories
Las Vegas, NV
702-258-2695


"Brunswick für das Leben"
(\ /)
( . .)
c(')(')
Cute Bunny! copy bunny into sig to help him achieve world domination
Logged
Pages: [1]
« previous next »