to a mold during a casting process such automated processes can use dynamic metal level variation control pin pulses and or oscillation during the mold fill and transient portion of the cast it has been found that such pulses keep metal flowing in a manner that addresses problems particularly at the beginning of an ingot cast associated with metal meniscus contracting and pulling away from the mold on the short faces and corners application_number US 201414205183 A description in the following description various embodiments will be described for purposes of explanation specific configurations and details are set forth in order to provide a thorough understanding of the embodiments however it will also be apparent to one skilled in the art that the embodiments may be practiced without the specific details furthermore well known features may be omitted or simplified in order not to obscure the embodiment being described the following description will serve to illustrate certain embodiments of the present invention further without at the same time however constituting any limitation thereof on the contrary it is to be clearly understood that resort may be had to various embodiments modifications and equivalents thereof which after reading the description herein may suggest themselves to those skilled in the art without departing from the spirit of the invention fig1 is a simplified schematic vertical cross section of an upright direct chill casting apparatus 10 such as is appropriate in connection with certain embodiments of the invention at the end of a casting operation such molds and portions thereof are.