Drogo's stone gen makes 440 stone per tick ( > 10 times faster than this one) but without nuker Drogo may not even bother. Drogo has 3.5 DCs of grass with no plan as to what to do with it. Will wait and see what the stone price settles at. Drogo considered just opening the stone gen up to everyone, essentially an endless supply of stone for the server but someone would break it and take Pistons etc. If Drogo could protect all blocks bar stone, it could be done.
Ahh Drogo only looked at the image in first post. Drogo changes the tick speed depending on how fast the water and lava are flowing. Really it only gets used when there is little lag. About 2 minutes mining per day was all Drogo needed to keep up with demand given that Drogo could mine it at the same rate it was being generated.
Right now at this state, it pumps out 4 dc's to fill the square in a few minutes. And yeah, adjusting the redstone is a pain because of server lag.
Yeah. Drogo only used it at certain times. Working solo Drogo could fill 5 DCs every 4 minutes continuously.