Following this KIS principle I try to keep rigging as simple as possible. While building this GIS I have drilled 8mm holes around the mast area, rounded them as much as possible and soaked them with epoxy. Simple 4mm dynema rope-loops are used to fix anything needed. I have used 8mm stainless washers to avoid knots to enter these holes.
No screws, nothing that can be damaged, light weight, easy adaptable or removed, and at very little costs.