I am wondering if a spring or pegs are preferred. I can make both but wanted comments. The pegs can be used to hold the line in the slot or can be threaded on the line for slip rigging. The foil goes in the slot. There really isn't any need for a slot on the spring type except to add the hydrofoil. There would be 6 loose pieces altogether with the pegs system but maybe only one piece for the spring style if I can make a foil that pivots in and out. The only thing I don't like about the spring style is they kink the line creating a week spot.