[WVM]

Thanks for the suggestion. I contacted VANS.

But I don't see much difference in my initial situation compared to the situation that various other builders had before they managed to get it correct. I think that there most be some kind of method or trick to it.

I also tried to clamp a large nail in the corner and tried to get the rib radius smaller so it better aligns the horn, but that is not really moving that much to correct it.