Help ID builder of Vintage Sneaky Pete Short Spiral Cork Wrap

Hi I was hoping someone might be able to assist me in identifying the maker of this cue. I've listed what I know below. Please feel free to ask questions if I've left anything out.

It was acquired in a thrift shop in Miami, Fl. a couple years ago.
It is 58" long, weighs 18.6 oz, and has a 12.3 mm tip.
The joint is 5/16 / 18 flat faced.
it has a spiral wrap cork grip which is only 8.5" long rather than the normal 12" wrap. The cork used is from a 1" wide roll and is so finely done the seam is almost undetectable.
5.The ring work is brown and white micarta (you can see the linen like grain) with a thin brass ring between them.

Please view the included images again feel free to ask questions. Any assistance would be sincerely appreciated. Thanks for looking. BTW I have more images but stopped at the 5 upload limit.
Regards,
Bill

Two more images of the cue.....

Another image

Hi, Thanks for looking. Yes, I'm 100 % sure it is 5/16 x 18.

Hi Will,
Thanks for the reply. I'll keep that in mind. I can't find a lot of his cues on the web as examples and it seems most all are signed.

What I was really hoping was that someone out there would recognize the one very unusual feature of this cue, the 8.5" cork wrap. Cork wraps are seldom seen by themselves and I've never seen a cue with a wrap that short.