Legal Ball CG Placement

[John_Velo]

Hi Guys,

What is the rule in Australia for ball CG marking in relation Centre of Grip.

I know there are the static weight rules that a ball must adhere to, but what is the offical rule for Australian Tournamment Balls?

Thanks, John Velo

 

[tonx]

No such rule applies. Only static weights. USBC were thinking about 1 inch from grip centre placement and removing balance holes, but that change never happened.

Hope this helps.

 

[John_Velo]

Hi Tonx,

Thanks for that. I thought it was odd that the balls are coming with placement suggestions, then I read about the about CG placement rule and thought it was odd.

Especially after just drilling a ball that did not fit into such a restriction.

Cool.

Thanks heaps, John Velo

 

[jason_doust]

10lbs of core revolving about your axis makes a much bigger difference that an ounce of sideweight, John.

Static weights are almost completely irrelevant these days.

With the exceptions of;

• You still can't build a dodo ball (The original reason they came about and still relevant, maybe more than ever.)
• The CG helping to define where a balance hole goes and and the resultant change in RG and DiffRG from the size and depth of the balance hole.
• If you happen to roll over that balance hole. (Definitely not good!)

Cheers,
Jason

 

[John_Velo]

Thanks Jason,

It has just been so much fun playing with the new kit. The lovely wife is starting to think me bowling again was a bad idea.

Like she started the other day, "another ball, I thought they lasted more than six game before needing to be replaced!"

All I could do was smaile and say, "yeah made in china."

Thanks for the advice it is really appreciated, the last thing I want is something illegal.

John.