Perhaps you should consider to have 2 modelling Streams in a week since you seem to be very stressed (not only yesterday) LA. You could get more done and also can go on the projects more relaxed because you´ve got more time for each model. At least it would make sense to me. More time - more quality - shorter production (because you´ve got twice the time of work in 1 week).
And then I lose a day of production per week on non-stream projects. Which already are taking months at this rate.
Either way something has to give. There simply isn't enough time in the week to get everything done.