And just what size end serving did he use? Could be the size was too large or not served tight enough so it rubbed the edge of the groove during cam rotation. The depth of the groove would have no ill effects on the string, but if the string diameter is too large for the width of the groove it would account for the wear you describe, along with maybe the groove having too sharp an edge.
Originally Posted by bigredhunter00
If You're Not Living on the Edge You're Taking Up Too Much Space
Martin/Rytera Staff Shooter
PSAA Life member, UBP Life member
PADI AOW Diver