Riamus
Hunter
You can suggest anything you like. Maybe they will add it, maybe not. But I won't see a point. As Roland said, having them jump now would be good just for its own sake. But worrying about it they jump over a row of spikes to land in another row of spikes doesn't really add anything, imo. Of course, you don't even bother signing spikes into the ground. Zombies go through them when placed on the ground just fine unless you have a lot of gaps. As I said, for a crafting base, a couple at each corner will pretty much kill any screamers. You don't even need more than a couple per corner and you won't have to deal with them, at least until they are radiated.