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Delta Hydro Studio vs manual methods
Engineering judgement stays human; arithmetic and GIS prep should not consume the entire fee.
Where manual methods still win
Exam-style checks, teaching labs, and quick sanity bounds are still best done by hand.
Where Delta Hydro Studio wins
Anything that repeats across catchments, return periods, or design storms — especially when clients expect GIS context and formatted appendices.
When to pick which
Use manual checks to validate; use the studio to deliver.