Am wondering - what are the specs on the fretwire used on most of the new USA PRSi? Such as Artist V, SC58, Sig Ltd, etc. Most manufacturers post these specs or type of fretwire, and while I can find all the detailed info on the neck shapes/measurements in the Support area, I don't see anything on frets. Some folks say 6150/6155 is closest, others have said Jescar FW47104.. ????