Would you say it's worth keeping around as a chunk of Jin that "broke off from heavy snow" or something? Or cut that thing off as soon as safe?
I would remove it. Or if you leave a Jin, carve it down so that it’s pretty thin.
You see, your largest branches should be lower on the tree. A heavy branch up high is just all out of proportion, and it destroys the image. Having relatively thin branches coming off the trunk makes the trunk look larger. Heavy branches (and jins) coming off the trunk makes the trunk look small.
It a matter of perspective, and how our brains interprets what it sees. We “expect” to see heavy branches down low, and thin branches up top. But when we don’t, then it draws our attention because our brain perceives “something’s not right”. And then it stops to try to figure out what’s wrong.
That’s not what you want the viewer to subconsciously do.
And don’t think you have to make a “flat top old cedar” just because this is a cedar! Bonsai is art! Not a replication of nature in miniature. Your tree has a cool Jin apex. It has naturally cascading hanging branches. Make use of these attributes! It would make a great “fir”or “spruce” style tree.