The ordering
Two questions, asked in a fixed sequence, and only one of them is negotiable.
Deployment resolves two separate questions and the system keeps them separate on purpose. How much risk is available is answered by the gate, which is derived from drawdown state and caps the maximum tier the throttle may reach. Which branch that available risk should go to is answered here, by branch quality. The sequence is not interchangeable, because the second question operates entirely inside the answer to the first. A branch reading well does not enlarge the envelope; it competes for a share of an envelope whose size was already fixed elsewhere. Collapsing the two into a single judgement — this branch looks strong, therefore commit more — is the specific failure the ordering exists to prevent, and it is attractive precisely because the branch evidence is detailed and quantitative and feels like it should be able to settle the matter.
Schematic. Branch quality decides how the available risk is distributed across branches. It has no mechanism for raising the line, and no branch score at any level moves the ceiling upward.

