On the Tornado the stays come together in one big shackle on the mast. Just above this shackle there is a smaller shackle, perhaps 4-5cm. This is where the trapeze lines hook in and there is very little chafe there. If your mast is rigged differently so the trapeze lines chafe against the shrouds or something like that, you get chafe and it is instantly noticeable when you know what to feel like.