Should I switch from 14 to 13lbs?

[rv driver]

Ok lets make this simple, name one Radical ball with identical dynamic numbers at 12 lbs as at 14 lbs.

Most models they don't provide a ball under 14 lbs, and of those that they do, the diff is about 16% lower on sub 14 lb balls compared to 14 and above.

The numbers are different, but Motiv told me when I called them, that their 12# stuff uses the same core as their 15# stuff.

[rv driver]

I use 12lb bowling balls due to physical limitations. My average is 205. I see no carry differences between the 12lb stuff and when I was able to throw 14lb. There are numerous manufacturers who offer lighter weight bowling balls with dynamics virtually identical to their heavier weight versions (Elite, Motiv, Brunswick/DV8/Radical, Lane1, some Storm). It is just a matter of shopping carefully and selecting the balls that maintain that dynamic integrity.

As with any bowling ball, if you can get the ball to break/flip and roll into the pocket it will carry. If it means bowling pain-free, it is definitely worth it.

I'm with you on that!

[Mike White]

The numbers are different, but Motiv told me when I called them, that their 12# stuff uses the same core as their 15# stuff.

As the material around the core gets less dense (to make a lighter ball) the RG # should decrease since a higher percent of the mass of the ball should be in the core, motive's RG increases significantly in the 12 lb balls, which indicates that even if the core is the same shape, it isn't the same "stuff".

[rv driver]

As the material around the core gets less dense (to make a lighter ball) the RG # should decrease since a higher percent of the mass of the ball should be in the core, motive's RG increases significantly in the 12 lb balls, which indicates that even if the core is the same shape, it isn't the same "stuff".

Well,that's kind of what I suspected, too. The numbers don't lie.

[Ryster]

Ok lets make this simple, name one Radical ball with identical dynamic numbers at 12 lbs as at 14 lbs.

Most models they don't provide a ball under 14 lbs, and of those that they do, the diff is about 16% lower on sub 14 lb balls compared to 14 and above.

I said virtually identical, not identical.

If you look at Radical balls such as the Grease Monkey line, the 14lb have an RG/Diff of 2.556/.048. The 12lb are 2.608/.040. Close enough to get virtually the same reaction between the two weights. Someone could get all three Grease Monkeys and have an arsenal that covers 99% of the conditions they would cross. Not being able to get a 12lb Reax or Guru doesn't present any issues.

[dnhoffman]

I wouldn't do it. Too many factors that result in getting less out of the ball itself.