Any ideas on de-slicking my Centofante III handle?

[diamdave]

Like the knife, hate the handle, especially in hammer grip.

What can I do to make the zytel handles (which I thought would be grippy like the Delica/Enduras) more grippy, less slippery?

 

[wwells20]

STR could bead blast the FRN. I think I read that he'd done that before.

 

[J.S. Carter]

could also use some needle files and file some checkering into them.