Sledgehammers ignore mechanical threshold on organic targets - does that include the damage from spikes? From what I've seen, spikes add 2-3 small instances of damage to your hammer, which didn't seem useful to me until I remember about the sledgehammer property.
I'm a bit disappointed there's no energy emitter for hammers, so it seems going electrical is always the best option when crafting a hammer. But having a hammer with mechanical repairs is convenient while clearing out simple content, so maybe having one with spikes might be useful
