# Risks

Current status: bare-bones readiness packet. Risks below are gates for the
next validation build, not proof that the current packet is build-ready.

## Acoustic Risks

- The stopped-pipe quarter-wave model omits mouthpiece compliance, player
  coupling, bell end correction, bore roughness, leaks, and warm-breath
  temperature effects.
- The A1 bell candidate may not trim predictably if the bell flare dominates
  the end correction.
- Ideal 3f and 5f resonance expectations may not match playable toot response.

## Fabrication Risks

- Long-bore ID measurements may be sparse or hard to reproduce without a
  dedicated gauge rod, bore scope, or station jig.
- Split-blank or stave glue-up may introduce leak paths that invalidate pitch
  measurements.
- Hardwood machining before a PVC or scrap validation pass could waste
  material on unverified geometry.

## Safety Risks

- Bore finishes, adhesives, sanding dust, and wax additives are breath-contact
  hazards until product choice, cure, odor, tack, and dust checks are recorded.
- A natural agave or found-bore path may include cracks, residue, or biological
  material that must be cleaned and inspected before play.

## Scope Risks

- Updating the README status to `V5 build-packet candidate` before CAD/DXF,
  visual register, validation rows, and MCP provenance exist would overstate
  readiness.
- Generated or rendered images may communicate shape, but they cannot control
  bore dimensions or toolpaths.

## Mitigations

- Keep the first build as PVC, scrap, or otherwise inexpensive validation stock.
- Record cold and warmed pitch before trimming.
- Promote only measured station data, reviewed CAD, DXF, or design tables to
  fabrication authority.
- Leave sourcing rows unverified until purchase time.