RE: which material for strings/cables?
As for the diameters of the String material.....I can't Really say becouse String material is basicly Flat!!
As Far as Abrasion Risistant, 452 will Fuzz up after awhile! so I would say the 8125 would be more restiant! But you'd Probably want to use the 452 on the Cables for the stability of the little to none stretch! and the 8125 on the string!!