Like the title says: how do you think essence cost reduction from having Biocompatibility and Alpha-grade 'ware works?
Adapsin is additive: -10% from adapsin and -20% from Alpha is -30% total, not -28%.
Used is multiplicative (it's banned in Missions, but still a SR rule): +20% from Used and -20% from Alpha is 96%, per the example.
Gaesa and Ways (again, not used in Missions, but still a SR rule) is a similar example of multiple deductions and is 50% off, not 43.75% off.
Biocomptability just doesn't say. Is Biocompatible Alphaware -28% or -30%? How do you run it?
I am specifically interested in this for Missions purposes which is why it's here, not on the main rules questions board - I'd like to know what the community consensus, such as it is, is for Missions.