Bukkit

While RadisMultipler is turned on in the config, it needs a coil height limit or else it can quickly become extremely out-of-hand. With enough iron blocks (or configured block item), it could literally go all the way to 256 and reach out extremely far.

Not sure if a message to the player would be necessary, but I suppose upon tower activation, it wouldn't hurt. Something simple, such as "Your coil is only using <config #> of the <built #> iron blocks" or something. Thanks!