That's not a predator manufacturing problem ... That's a you have ocd with chalk and it's caused you to destroy your shaft with sand paper problem lol
I couldn't completely get the chalk out of the shaft and when I had it professionally cleaned they used a fine sand paper so I stated doing the same. I guess eventually the shafts got too thin and the laminates would start to come appart. Also I've never owned a break cue so I was breaking with it and apparently you shouldn't be breaking with it, so a vendor at one of the pool tournaments said.
About 3 months ago I invested in the new OB Rift break cue but still continued sanding the Vantage shaft to get the chalk out of it. Anyway, I knew I was doing damage to the shaft but I couldn't stand it's appearance when it had a tint of blue from the chalk plus I never applied a sealer after cleaning it and would sand it to get the chalk out.
I practice 6-10 hours a day and now use the new Kamui .98 chalk and love the fact that I only need to chalk every 2-3 games. There is little to no dust and my hand does not get blue from chalk dust in the table cloth. With the REVO shaft all my problems are solved plus I'll continue using my OB Rift break cue.
It's 8am, going to hit the practice room. Later.