A customized mattress evaluation system allows for uniquely designed mattresses based upon a particular customer’s physical attributes. The method comprises defining a first probing channel for the transmission of probe signals to other stations. Digital effects and filters are dynamically stored, modified, updated or deleted, providing extensible reconfigurable effects studio. A coefficient vector, \u0175n={circumflex over }n\u22121{circumflex over }n, is determined, where a correlation matrix for the received signals isR^n=1\u2211k\u2062\u03bb\uf603n-k\uf604\u2062\u2211k\u2062\u03bb\uf603n-k\uf604\u2062\u2062xk\u2062xkH,and an estimate of a crosscorrelation isd^n=1\u2211k\u2062\u03bb\uf603n-k\uf604\u2062\u2211k\u2062\u03bb\uf603n-k\uf604\u2062\u2062xk\u2062ck*. Preferably, rotating and oscillating light signals are produced by sequentially illuminating columns of LED’s on a stationary light support. Additionally, apparatus may include a consumable sheet to remove excess adhesive from the substrate.