It turns out that with the E-net being where it is, you can supply the terraformer with a lot more EU than it was ever designed to receive at once... happened in about half a minute and that's after I cleaned it up where I was testing other stuff. Can it be made to turn off if it gets a redstone signal rather than having to configure every EU storage block that goes to it?
And yes I realise that I could use splitter cables but they're really picky to how they receive redstone.