So really, this was a cup and handle, not a head and shoulders but I'm going to say that's semantics, because most CH formations tend to have a small leading handle, so you could view most InvHS to be a CH. If you really wanted to get detailed, the best distinction would be the shape of the head. If the head is pointy, and there is no leading handle, you want to avoid it because you're probably about the finish the top of either shoulder in a bigger HS formation.