Thank you. For some reason, when i read toe in your first post, my brain read it as heel! That's a lot of shortening, but you may make a useful blade of it.
I've not had to cut the end off a blade yet, but i used a belt sander with a sharp, fresh belt for that. I'll defer to a more knowledgeable source rather than make a suggestion on how to chop it. Whatever you do, it's imperative to keep it cool.
I wonder how it would work to freeze it in a narrow glass of water, then cut right through the ice & blade together? Not suggesting you do it, but i may have a go myself sometime!