I've tried several sims with a workboat opening, but so far it seems slower than the settle in place one. The biggest problem is either the lack of an extra hammer (due to the hill being a grassland instead of a plains one) or the lack of population for whipping when I had the city work a 1/2/0 (later 1/2/1, silk) tile instead.
I'll run a few more tests before moving on.
I'll run a few more tests before moving on.