XD you would not believe how annoying getting the timing for the second row was, we scrapped the first design for that bit XD
Yeah I bet, I wish I had the patience for that but I would have just given up and gone with a single row haha
XD we are in the process of moving the whole thing to a different corner and dropping it 10 layers down, oh there is water under it that pushes the cobble we miss to a collection point too.(credit for that to 1999kid)