if you have an ancient corruption block at corner and edge, you can get 80/100 on edge too. Get get 80/100 near the corner, you will need to add an additional lava in chiseled block
Here’s my usual lava layout
Here’s showing a block at edge not having 80/100 using usual lava layout
Here’s two places not near corner with 80/100 using usual lava layout
Here’s a modified lava layout for corner
Here’s the same block from screenshot #2 but showing 80/100 using modified lava layout
