Well, let me see if I understand the question, so I can ask somebody.

You are going to use a Hooter, right? And you don't want to use a hound for the halyard block on the mast because you are concerned that the mast will not rotate properly? And so you were thinking about using a line bail on the mast instead to allow the mast to rotate without requiring positive rotation, but you think the line thing will get twisted if you are using a roller-furling headsail? If that is the case, I will ask Dave Calvert on Monday (it's just a local call for me), and get back to you.

However, since your primary concern seems to be about the problem of mast rotation when using a Hooter, it would be helpful to know what kind of boat you have and whether or not it has a boom. I couldn't find your boat type in your posts.