We have used the continuous shockcord with captive hooks for many years. It’s one of the few things on the boat that we have never wanted to change as it works so well.
The difficulty with pulling a reef in on the open sea is that you have to work on both sides of the boom. With continuous shockcord one can quickly grab it anywhere along the length and get the hook on.
I have never had the hooks get caught on shrouds, but occasionally they do catch on something when hoisting the main.