I personally would use the micarta for adhesion reasons.
I would also cut the pins to length and spin them in my lathe or drill press and needle file some annular rings in them to create more adhesion surface.
A pin that is not peened or doesnt have a head to create a mechanical bond such as a corby, can be subject to failure from age of adhesive, humidity or concussion (ALL knives will be dropped).
Just my 2 cents.
Steve