I don't think setting a PREGAP line is the right solution.
We could stick to a single cue example and make other REM lines, stating the next LBA starting address, which also could allow us to dump and link other inaccessible disc areas like security rings and gaps between multiple sessions.
It could look like that:
REM SINGLE-DENSITY AREA START LBA *here number*
FILE "Official Sega Dreamcast Magazine Vol. 11 - February 2001 (USA) (Track 1).bin" BINARY
TRACK 01 MODE1/2352
INDEX 01 00:00:00
FILE "Official Sega Dreamcast Magazine Vol. 11 - February 2001 (USA) (Track 2).bin" BINARY
TRACK 02 AUDIO
INDEX 00 00:00:00
INDEX 01 00:02:00
REM HIGH-DENSITY AREA START LBA *here number*
FILE "Official Sega Dreamcast Magazine Vol. 11 - February 2001 (USA) (Track 3).bin" BINARY
TRACK 03 MODE1/2352
INDEX 01 00:00:00
FILE "Official Sega Dreamcast Magazine Vol. 11 - February 2001 (USA) (Track 4).bin" BINARY
TRACK 04 AUDIO
INDEX 00 00:00:00
INDEX 01 00:02:00
FILE "Official Sega Dreamcast Magazine Vol. 11 - February 2001 (USA) (Track 5).bin" BINARY
TRACK 05 MODE1/2352
INDEX 00 00:00:00
INDEX 01 00:03:00
Anything between Track2 end sector and REM HIGH-DENSITY AREA START LBA would be emulated as a GAP without having to set any pregap values and would not require extra FILE lines.
REM SECURITY AREA START LBA *here number*
FILE "Official Sega Dreamcast Magazine Vol. 11 - February 2001 (USA) (*here anything*).bin" BINARY
TRACK ?? MODE1/2352
INDEX 01 00:00:00
Not sure how to solve the "TRACK ?? MODE1/2352" part at this point, but there is probably a solution for that too. At this point its not a requirement.