I am loving the bridled kites, it's the bridles I could do without.

Bridles do break. I had one on my RRD break and go into a death spiral on me a ways back.
The other one broke in less than 12 knots. I have replaced both with Q line. So far, so good.
Doing a visual inspection every once in a while is probably a good idea. The nice thing about Q line is it will be obvious when it is about to go.
It will fray it's outer sheathing and start to show white on the inside.