schematic was with blocks that were impossible to obtain, like jungle and mangroove iron farm are early things and those blocks were late game. And the blocks that you need to replace were to much for me the replacing the struggle now im 29 blocks of iron down instead of going up. even though i have now 219 days in my world still those blocks the schematic changes are just not my type. im the one that give 1 star. the only thing that i like is that it was small in compersen to the rest op youtube. im going to make my own iron farm thanks for crushing dreams...