Not sure how or why he thought strung buck was unsafe. We did it in shotshells without any problems, along with balls that had tails Those did have some success using parcel ribbon of the 1/2" vareity, I think it was. We got the idea from an article in Guns and Ammo back in the mid 60's. My parents gave me a subscription to G&A for a birthday present when I was 15. I kept up the subscripton until the mid 80's or so. I cancelled when Elmer died, '84, I think it was. Loved that man.
; Anyway, the strung shot worked after a fashion and would indeed tighten patterns, but I suspect the string or wire would impinge upon penetration on deer, much needed with such light balls. They'd be just fine for fox and coyote though, extending the range considerably, I'd expect.
; The "flagged" single balls were better at maintining line of sight as the 'flag' prevented them from spinning off course like a baseball does in a thrown curve ball.