This is by far the largest section and some lines are reached by transposition of blacks 2nd and 3rd move. The tape is divided into the following sections based on * Black's second move in response to Nf3. This mechanical play of favorite lines is good against 3 d4 but does not hold up as well against white prepared responses. The idea is that White avoids d4 or postpones d4 while Black tends to develop into his favorite version of the Sicilian.
#E4 e5 nf3 nc6 bb5 series
Nigel Davies has a VCR tape called Silicide which is a series of opening ideas against the Sicilian mostly based on the White's following moves.