I change the full SSB1 and SSB2 as a combined experience.
End result is 4:1, 3:1, 3:1 for the final setup that is 13 weeks total (vs the 5:1, 5:1 for 12 weeks total). You can steal some aspects of the link to apply to your SSB2. Maybe a 3:1, 2:1 or the opposite could work?