https://github.com/drtshock/Essentials/blob/db47460a7949c5686222b16feb3c5f4be2a8376f/Essentials/src/com/earth2me/essentials/commands/Commanddepth.java#L16

Would it be possible to allow for this to be manually configured so you can adjust depth to your actual world settings if you had made adjustments or used a custom generator? My world for example is 11 blocks below 63 by default.