Gordon White developed the technique of "shoaling", which involves launching a group of sigils for a set of related aims. For example, instead of sigilising for "money", sigilising for a pay rise, new business clients, a promotion, influential new contacts, budget reallocation for your department, etc. – all of which help "shift the probability" towards the overall aim. White also developed the technique of the "robofish", which consists of including a sigil for something that the chaos magician knows will definitely happen, to "lead" the rest of the shoal.