Over the past decade, there has been rather vigorous activity in developing simultaneous sourcing and slip-sweep techniques for vibroseis acquisition. Such methods include HFVS and C-HFVS (Krohn et al., 2010), ISS (Howe et al., 2008), DSSS (Bouska, 2010), and HPVA and V1 (Meunier and Bianchi, 2002). These methods provide improved vibrator productivity and create a means of cost-effectively improving source density and thus spatial sampling. Egan et al. (2010) have discussed the link between spatial sampling and resolution (spatial and temporal).