In routine reflection seismic data acquisition array techniques are extensively used for ground roll suppression instead to leave this completely to the processing procedures like frequency filtering, frequency-wavenumber filtering etc. Especially the stack array (Anstey 1986, Morse and Hildebrandt 1989) proved to be a very effective means for eliminating the ground roll. The industry has optimized this method. However even small scale seismic work can use it effectively.