There doesn't need to be allowance, See the Oct 27th RNS
85 day flowback tested by RISC, so that confirms full 85 days and then add 12.5 days of production test, so a full 97.5 days flowing ( i rounded up to 100 for ease of calculation) I assume all the rest of the time is non-flowing
I base it on 100 days because it if flowed longer then my numbers would be lower.