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On another forum they say that it is not a cap but a stepped pin. The part that presses into the blade is the same but the Ti/contact side is machined stepped up/thicker. It seems like a pretty smart/easy fix IMO. I have an SnG with pretty late lock up. The detent ball is around 1/32nd away from touching the g10 side. I wouldn't imagine they would do anything to a knife unless there is blade movement in the open/locked position.
I was also wondering about this as I have an old lockup PT and was wondering if they would update it to the new lockup or not. Im planning on emailing them about it soon to see.