Starting ball was an eruption pro with a 2x2 layout and an axis hole to bring the ball back to 1 oz of positive side weight.   On a 40 foot THS my shot would stand up quickly with poor continuation.  Not surprising since I set this ball up for use on much shorter patterns. 

After plugging the balance hole the ball had over 2.5 oz pos side weight.   With this set up I still get an angular  move , but with much better continuation whether I played close to the oil or fed it a couple of boards to the dry.

Conclusion, the extra static weight allowed under the new rules can have a more noticeable impact than many people believe.  The impact of precession first discussed by Bill Taylor over 50 years ago is a factor,

Totally agree Rico.  Nothing totally scientific about my experiment.   Remember, you are talking to a guy who believes release is a bigger factor in ball reaction than surface or core.   

Just saying that while common sense tells me static weight has less impact on  a modern core heavy ball, it still has some.  Therefore 3 oz of side weight will have 3 times the impact of one oz, regardless of the amount 1 oz has

The correct conclusion should’ve been that plugging a weight hole can have a noticeable effect on ball motion.

It has actually surprised me how little plugging motion holes has changed ball reaction for me so far.  Then again I tend to have mostly between 3 and 4" pin to pap drillings as well.  Might be style dependent too.

With a pin in the 3-4" range most weight holes will have diminishing returns. More flare doesn't mean more hook.  Everyone thinks a lower rg and higher diff created by weight holes will create more flare and more total hook. It typically won't.

Because you already reshaped the core to the point that the lower density plug isn't making any difference on the increased RG and increased differential that the crater/Motion hole creates.

I was hoping that was the case but the following BTM article kind of disputes that.  Even with a ball plugged and redrilled 5x in massively different spots the RG, int diff and diff were hardly affected.

https://www.bowlingthismonth.com/bowling-tips/the-effect-of-plugging-and-redrilling-on-bowling-ball-mass-properties/

Forgive me, I absolutely do not want this to be construed as a thread hijack, but I am grinning ear to ear right now.  For years and years I have said that static weight still mattered, and all I got was "1 oz in 16 lbs. You are crazy". (3 oz in 16 lbs is no different...) And I stood here proclaiming that people were missing the differences seen by lower rev, lower speed players like myself. And again I was called crazy. That was then, this is now, and people are beginning to realize. I'll bet some will even proclaim it was always understood. I very much look forward to hearing more in this thread, and am fascinated by precession. I just googled it, and it's a bit above me on first reading, but I'll re-read it later...

I think the issue was that in today's game, for the average competitive bowler, static weights didn't matter. The core, cover, flare and rpms had more of an impact than the static weights could.  But get a 70 year old bowler with 11 mph and very little revs and side rotation and you will see that 1 oz of weight will make a ton of difference.  3 oz is going to make even a bigger difference.

36 weeks of this coming up is about to be such a jolly good time.

Quote from: HankScorpio on August 24, 2018, 07:22:28 AM

The correct conclusion should’ve been that plugging a weight hole can have a noticeable effect on ball motion.

It has actually surprised me how little plugging motion holes has changed ball reaction for me so far.  Then again I tend to have mostly between 3 and 4" pin to pap drillings as well.  Might be style dependent too.

Sorry, I worded that poorly. I meant to say that as HIS conclusion based on his test - as in, in his case, plugging the weight hole made a noticeable difference. The only thing he changed intentionally between test 1 and test 2 is the hole being plugged - therefore, for him on that ball, plugging the weight hole made a difference.

I actually agree with you, plugging the hole rarely makes a big difference for me except for extreme situations when the hole was causing the ball to puke.