[STAGE]
xform=bspline
optim=lbfgsb
impl=plastimatch
threading=openmp
max_its=10
res=1 1 1
grid_spac=50 50 50

# Note:
# This 2nd stage is the same as the 1st stage, but has
# a different grid spacing.

[STAGE]
grid_spac=30 30 30
