A pickup head is provided with a second shaft receiving section. The second seat includes a mobile infant carrier. One of the factors is a pre-set crawl rate limit. This targeted thermal insulation in the edge area provided in the form of a material bond between the core material and the edge material renders the heat shield block particularly unsusceptible to the formation and growth of cracks in the core area on the hot side. The method combines the steady state information with the predicted response of the system to determine inputs to the system which will cause the system outputs to match the target outputs as closely as possible.