The invention includes SOI thin film transistor constructions, memory devices, computer systems, and methods of forming various structures, devices and systems. For networks with link level backpressure, the method provides a deadlock free transition between the routing strategies. A receiving circuit delivers, when the receiving circuit is in the activated state, \u201coutput signals of the receiving circuit\u201d determined each by a linear combination of the voltages between one of the signal terminals and the common terminal, to the destination. The DFS provides a strong fin mounting, and uses a combination of an axle for rotational control, a resistive centering force, and a force preload for stabilizing the fin in the neutral position.