Gotta debate with O_W here, sklag...
Replace with perlon cord, or preferably kevlar cord (but don't retie after tieing the knot - kevlar will "brittle up" after repeated flexion) in the last hole ahead of the trigger slide slot, just like your friend has already done. This helps to prevent stem breakage when falling onto horizontal cam placements. Less leverage. I don't think you'll be able to get 1" tubular through that hole.