Not the greatest pic, but you can see the wood for a compression fit around the pilot, though it just looks like a dark ring.
I just went through and checked my other cues with 5/16x18 pins and non have flat crest, they all have a sharp crest.
Also, which surprised me, is the shaft is 13.5mm, which is very unlike a production cue. I think the last 13.5mm shaft I had was an old stitch ring Runde Schon shaft.
