I did have a little moment today where I thought what if it really is an edge and tried to work out where to get one on the way home lol, luckily actually going to a shop hasn't worked out for me, And I've now thought, I'm quite happy with my rigs these days. I am still using the same booms, I've caught all my fish on this year. I'm trying new leaders this weekend, if they work out ok I will have a nice and stealthy set up that doesn't cost the earth. Will be interesting to see if anyone starts catching loads on them though.
But yes my main concern with it is that it could be an extra danger if you get snapped up or, have a crack off or something then it could be trailing a mini weed rake. And losing one at a fiver a pop would make me really sad.
Is it a lot worse than things like adjustable zig floats, or lead clips that have tail rubbers pushed on too far. Maybe /maybe not but I guess if there are issues it will come down to human error and them not being used in a safe situation. Time will tell