I honestly don't do that well with being rushed, but if I have to then I guess that's that. I am preparing with a friend for hard mode on my for the worthy master mode world. I dug tunnels, but after that I tested in another world if the hard mode V spawns in it's whole as V (hence the name) immediately, and did spawn immediately after killing WOF. I showed two images, and one shows what I am pretty sure it 's going to look like and the pink represents hallow and the purple corruption. The dessert would most likely be converted to hallow, and corruption would be deeper, but relatively the same.
The lower center would probably not withhold the evil biomes, and tunnels closest to the left side of the hallow might spawn past that tunnel. Same for corruption I think the far right part of it could spawn past the tunnel I have there. I have two ideas, which one would be to dig around every area I don't want to be converted. The other is the to dig between the hallow and the corruption horizontally to stop it from spreading up to my npc's. My main goal is to make hard mode safer, reduce the amount of work I have to do when I get the clentaminator and stop my npc's from moving out.
If you have any suggestions please let me know.
by Kindasmartorange