Ron the Pool Student used the Tunnel Trainer (supposed to be 2 5/16" diameter) found it an easy method to detect deflection differences produced by different shafts. The shaft he was used to, a Z3, sent cue balls through the trainer while Jacoby V3 and V4 knicked or knocked over the trainer...
Amen!
You can't just roll the 16 ounce cue on a table to check for wobble. That butt is flattened just where the name, O.L. Briggs & Son, is imprinted.
I could put the cues on rollers and provide a video for those interested (they would be big files).
The earlier post telling Moori's story was from 2016 and AZers complained then of lower quality Moori tips. Moori's quality or counterfeit problems, therefore, started sometime between the 1990s and 2016.
They are trying to be accurate with the extra step. Maybe by adding that extra step, in practice its a wash and there is no improvement. I suspect under some cut angles and shot distances, the extra step is necessary to pot balls.
OP has been lurking for five days but may return . . . . . . . . .
The answer to OP's question of how you can keep track of an object-ball contact point that is many feet away? Use an object ball with 110 multi-colored, multi-shaped spots. Assign a contact point to one of the spots and...
Hmmm, you may have a point. I did not copy the CutShots method correctly. It finds that to make the shot, the cue ball overlaps OB the same amount as the distance between OB-contact point and OB edge. That distance on OB and CB makes two contact points for the initial aiming line. The...
The figure could be improved with some notes to get some of us up to speed quicker.
The two figures are of thick and thin cut shots. The Five ball's face is aligned with the cue ball direction with the thinner the shot, the more the Five ball's face turns to the right. The thinner the cut, the...
If this includes veneers, Jacoby butts and shafts have problems:
Its Earth series' butts are veneers.
Its 140-piece Ultra Super Pro shaft are veneers:
_
It used to be and maybe still is that the price sold is listed unless it is a BEST OFFER type of sale AND there is a line through offer price. For example, see the crossed-out price in an eBay posting below of a Predator sale. In that case, there is no knowing what it actually sold for.
I...
Or get a stick that's about a hundred years old with a butt 1.39 inches thick (35mm) --- a Viking skinny is 1.2" (30.6mm)
https://forums.azbilliards.com/threads/%F0%9F%92%AFfour-one-piece-cues-about-100-years-old-%E2%80%94-400-shipped%F0%9F%92%AF.586417/
Someone should start a post on internet-forum toxicity. AZBilliards would be included in that discussion. AZBilliards is toxic but also contains valuable information. As a mentor said once of a researcher who was a klutz, "even with with Gonzo, there are gems in his garbage articles". There...