I haven't yet updated the other thread Singh. I was trying to get a decent photo of the horns on the bike, but it's been dull and rainy and a flash photo doesn't show them too well. I mounted them either side of the pulse air valve on the front frame, using the existing bolts. Ideal location.
Yes I think the sprag has had it. I'm hoping they'll be along to pick up the bike tomorrow. I'm expecting to be without it for a week or so.
I'll update the horn thread later.