So, I'll be contrary here.

That band on stop doesn't actually need the brazed on heart to keep it in place. On most bikes they stay on without one just fine.

I think the heart is there to show you where to put the stop, and you're supposed to mount it above it, just like you have it now.

It's a bit confusing because it's not the norm to put a braze on like that there at all, so I get the confusion here. But I think you have it right as-is.