Using the RCI Deposit Calculator, I messed with the weeks and maximum capacity(privacy). The weeks look identical in trading value on RCI and the only difference is between private sleeping for 4/6 and 8.
Here are the results....
Week 5
2br - 6(4) = Trading Power of 11
2br - 6(6) = Trading Power of 11
2br - 8(8) = Trading Power of 13
Week 30
2br - 6(4) = Trading Power of 11
2br - 6(6) = Trading Power of 11
2br - 8(8) = Trading Power of 13