Practical presets:
Preserve extremely thin filaments
--mode tangent --k 8 --alpha 0.01 --beta 0 --tan-cap-frac 0.02
--ortho-factor 0.5 --reject-factor 1.01 --max-tries 100
Moderate filament thickness (allow slight cross-section)
--mode tangent --k 16 --alpha 0.02 --beta 0.1 --tan-cap-frac 0.05
--ortho-factor 1.0 --reject-factor 1.02
Fill gaps smoothly (less emphasis on thin filaments)
--mode interp --k 32 --noise 0.01