Most sneaky pete series cues do not have a Collar;

I see many "Opinions" on the feel of this;
However; does anyone have evidence that a Collar makes an beneficial accuracy difference;
or is it just a change in irrelevant vibration translation when keeping the same combination of Ferrel + Tip.

What are the benefits or failures when NOT having a Collar; versus having a steel, bone, harder wood, or Plastic Collar (implex).
Or does this collar only serve to preserve the Joint section from 'Chipping' the wood at the connection.
For instance "Using a steel collar for your breaking cue" vs breaking with a wood to wood joint.