An object of the present invention is to facilitate the release of a formed product from a die. A plurality of program lines within a first region are cladded with a flux-concentrating layer configured to focus a generated magnetic field while the portions of the program lines within a second region are uncladded so that the generated magnetic field is unfocused. The closure mechanism includes first and second profiles having first and second base strips with first and second interlocking closure members extending from the first and second base strips. This is accomplished by de-coupling the RTT from the ACKNACK analysis performed in the sending node that receives the ACKNACK report. The tab is formed to be received within the channel and engage the lip when the insert is moved in a superior direction into position against the base.