Had a great experience with Signal warranty in the past, almost pretty sure they will warranty it without question. If you sent them pictures of the break, they would probably just ask you to mail it to them for a replacement (if they have on in stock).
Oh, and dont listen to that dumbass suggestion 2. tell them you are going to seek out others with a similar issue and push to have a recall forced on them if they dont replace it. They will most likely just laugh at you, but if you reach someone high up enough, that will make them cringe. - what a fucktard...