Hi Bryan,
I have no intentions of crossing swords with you on this, or anyone else for that matter but your statement that a shaft that has an insert can't be a W/W joint I feel is incorrect.
I just want to clear one thing up, Uni-loc is not a wood to wood joint. Any cue that has an insert in the shaft that is not wood is not a wood to wood joint. Even if there is some wood touching from the joint and shaft it is a misleading idea that some production shops have tried to capitalize on. Radial, 3/8-10, 3/8-11, and some other "acme" non-traditional thread types are the only true wood to wood joints.
For those who have there idea's that if a cue has a metal pin then it can't be wood to wood, NO, it's about what's in the shaft really.
This subject has been debated before, and usually the only people who fight/defend the the other are not cue makers.
As you know, I'm a CM and have been for more that 20 yrs.
Whether a jnt is W/W has nothing to do with the pin (or insert).
It's about the mating surfaces of the shaft and handle.
If the wood surface of the shaft comes in contact with the wood surface of the handle then that cue's jnt is considered W/W regardless of the pin configuration that is making that connection. Pin & insert has nothing to do with it.
The Predator 8pt previously referred to is a W/W jnt.
A TS sneaky, even though it has a 14 TPI pin into an insert is very much a W/W jnt. unless a SS jnt collar has been installed, in which case there is no W/W contact across the jnt.
The distinction has nothing to do with the pin or whether that pin is accompanied by an insert. The pin has one job and one job only. To keep the shaft securely connected to the handle. It doesn't matter what that pin's TPI is or whether it has an insert. It only has to bring the two mating surfaces together and hold them there, the tighter the better. It's the wood contact on the mating surfaces that determines whether the jnt is W/W or not.
Even a SS collar that is 'sleeved' over a wood tenon would be considered a W/W jnt as long as the exposed wood mating surface of the shaft comes into contact with a corresponding exposed wood surface within the SS sleeved collar.
We can debate this further if you like and I promise to be civil.
I also think that this question might be better asked in the CM's section where we'd get responses from people who deal with this stuff on a daily basis for a living. I'm all for a good discussion when it leads to a better understanding.