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41. Thanks. Always good for a free raffle.

If someone can tell the difference between 12.4 and 12.5 mm tip diameter, I bow to their pool godliness skills. Changing the tip will likely make a much bigger difference.

Seyberts has them for 23 cents each. 30 cents each at Kamikaze, but they have a better color selection.

I’m actually surprised eBay didn’t pull that one immediately. In that price range it would be at Sotheby’s or similar art auction house, if that’s its actual value. Been to their auctions when we lived in England, and worked at one small one in Midhurst. Their art experts evaluate paintings...

That’s funny. I just bought the Santos collection. I thought it was Ron, but this guy George has a card there with amazing stats. Is that maybe Ron’s son or something?

This is the only one I have left not in a cue. Weighs 54g/1.9 oz. Measure is in cm.

The current trend in the computer security world is to go longer, not more complex. As one person at NIST bemoaned, we have spent the last 30 years teaching people to create passwords that are easy for computers and difficult for people to remember. Schemes that work well are random and...

Here's an oddball for sale or trade. I obtained a box of 35 Elk Master tips, all 12.0 mm, from the local senior center where I have been repairing tips and cues. These are essentially worthless to them, since every cue they have is 13 mm. So . . . if someone could use these, I'll be willing to...

Mike Sigel pro line and Sly Foxx

I’m not sure where to ask this question, so I’ll try here. Is there anywhere in the equipment or other rules that actually specifies how level a table should be? I’ve seen the flatness and coplanar requirement for slates and slate joints, but nowhere can I find anything defining level and how...

I would, but can’t figure out which ones to use. The manufacturers have often gone out of their way to make this difficult so they can charge $10 for a part that should be 10 cents.

A pair of M16 x 2 taps cost me $10, and a bag of 25 set screws is $9 plus $5 shipping. If I go that route I’ll have enough to share . . . Any reason why that wouldn’t work?

The other option, which has a little risk involved, is that I could retap it to M16-2 and just use a standard size.

I am trying to reweight a group of similar cues and found that the weight bolts are not a standard thread size or something I have seen before. Measuring them they come to 14 mm (very close to 9/16) with a thread pitch of exactly 3 mm. This doesn’t come to an even SAE size so it looks like it...

I’ve also been saved by Paypal buyer protection. Almost no wait to get a real person on the phone, and by the time I got off the phone a half hour later my refund was in my account and they had forwarded everything to the FBI Internet Fraud group. I also refuse to deal with Zelle, Venmo or F&F...

And I have to vacuum the table about once a month instead of once or more a week. That saves me several hours per year, plus wear on the cloth. That is worth way more to me than the $18 for the chalk that looks like it will last until mid 2024.

Agree about Predator. I tried it on a whim and am somewhat disappointed by the mess I was trying to avoid. I guess the good news is that there is no doubt about where I impact the cue ball. And I had a beautiful blue streak on the cloth after doing one of Dr Dave‘s VEPP exercises for an hour.

If the contact time is linearly proportional to the speed, yes, but this whole discussion looks and acts non linear, hence the videos and the usual transition from theory to engineering. I was getting about 250 microseconds from the videos Dr Dave posted. No good way to relate that to speed...

Hmm. If you look closely at the oval tennis ball marks you’ll see that they are all skids, usually accompanied by some yellow fuzz, amount depending on the surface. It is extremely difficult for us mere mortals to get enough topspin on a ball, especially on serves or overheads, to have the...

A trick that has been used for ages at much higher levels than this is to include the front page from recent issue of a major newspaper.