IIRC at the beginning of the 76-90 period the characters took some time to help each other with longevity rituals.
Four seasons in fact
Bausas made a ritual for Janus assisted by Andreva, Janus, Grace (Andrava's familiar), and Callidus (Bausas's Familiar)
Bausas made a ritual for Andreva assisted by Andreva, Janus, Grace (Andrava's familiar), and Callidus (Bausas's Familiar)
Bausas made a ritual for Hector assisted by Saoirse', Hector, Grace (Andrava's familiar), and Callidus (Bausas's Familiar)
Bausas made a ritual for Saoirse' assisted by Saoirse', Hector, Grace (Andrava's familiar), and Callidus (Bausas's Familiar)
Here: https://forum.atlas-games.com/t/anulus-connectens-bausas/10511/117 Tellus told us that Bausas' relevant lab total (including help from Callidus) was 96
Hector and Saoirse' never made it (or perhaps haven't yet made it) to the 76-90 period so I can't compute their scores, but using the +75 characters for the start of the 76 -90 period Andreva and Janus end up with applicable lab totals of 140 without the addition of more vis. This produces an adjustment of -28, or with a single additional pawn of vis -29, on aging rolls.
I'm going to finish off Andreva's 76-90 period so I needed the number and I thought that I'd post it here.