I am also not convinced that zeroing out mask levels at the start solves this problem. The random walk variable is also a learned per region factor. Even if the starting value can no longer be influenced by mask levels, the starting value + 1 month of random walk value for the region can be influenced.
I am also not convinced that zeroing out mask levels at the start solves this problem. The random walk variable is also a learned per region factor. Even if the starting value can no longer be influenced by mask levels, the starting value + 1 month of random walk value for the region can be influenced.