audit of imported weights (row order as pasted)
  region/north: target=50 actual=50 error=0
  region/south: target=50 actual=47 error=0.06
  band/high: target=40 actual=37 error=0.075
  band/low: target=30 actual=30 error=0
  band/mid: target=30 actual=30 error=0
passes=false max_error=0.075 bounds_violations=0 ess=5.921334172435493
after refit: iterations=1 passes=true max_error=0
  north-high: 20
  north-low: 15
  north-mid: 15
  south-high: 20
  south-low: 15
  south-mid: 15