The method of selectively climate controlling the formulation and distribution to points of sale to customers of pet food. Semiconductor substrates prepared thusly may have a single-crystalline semiconductor layer having a thickness of 100 nm or less, a layer thickness uniformity of 5% or less, and an HF defect density of 0. The docking station is configured to receive an audio signal from a musical instrument and to modify the audio signal from the musical instrument based on at least one instrument effect from the plurality of instrument effects. Distributing buoyant elements throughout the length of the array generates more consistent, uniformly distributed tension, enabling the sensor array to maintain a linear shape in currents of all strengths and speeds.