You should be able to change the SCHEDULE line at top of file to be:
Code:
<SCHEDULE type="ILY_BGY_G90_SL1_D1_T8_SL2_D1_T8_C_" inter_league="1" balanced_games="1" games_per_team="90" start_month="5" start_day="1" start_day_of_week="6">
The BGY & balanced_games go together.
The start_month and start_day can be whatever. May is month 5.
For start_day_of_week Sunday is 1, Monday is 2, etc. One thing with moving the start day of week is that the All-Star break and game would shift where they fall too.