Hi,
When I want to whip the MS in a hammer-poor city, I read in a whipping guide that I should wait until the building I want to whip is 1 turn from completion. I don't understand why? And it said something that I should whip buildings more expensive than 90 hammers as well. Why?
Thanks!
Guide is wrong, simple as that
Problem with whipping buildings is that you have little choice as far as the whipped item is concerned. A building can only be whipped once.
So... Normal speed, no production bonuses, a whip is 30 hammers.
A 1 pop whip will yield 29 overflow if the build is 1H from completion.
A 2 pop whip will yield 29 overflow if the build is 31H from completion.
A 3 pop whip will yield 29 overflow if the build is 61H from completion.
Let's say your city is hammer poor.
A good item to whip will cost a little more than a multiple of 30.
The idea, here, is that you don't want to queue an item and wait 15 turns until you can whip it. A good item can be inserted in the queue and whipped quick.
e.g.:
City is size 4, produces 1H/turn: you insert an axeman, wait 1 turn (axe is 1/35H), whip 2 populations: overflow is 26H (60H from the whip, minus 34 lacking to complete the build, equals 26H of overflow).
e.g.:
City is size 4, produces 5H/turn: insert swordsman, wait 1 turn (sword is 5/40H), whip 2 populations: overflow is 25H (60H from the whip, minus 35 lacking to complete the build, equals 25H of overflow).
e.g.:
City is size 6, produces 7H/turn: insert temple, wait 2 turns (temple is 14/80H), whip 3 populations: overflow is 24H (90H from the whip, minus 66 lacking to complete the build, equals 24H of overflow).
etc.
EDIT: At 50H, Longbow and Catapult are good whips for a city that produces more than 10H/turn: insert, wait 1 turn, whip 2 pops, receive 20+ overflow.
At 70H, Maceman is a good whip for a city that produces less than 10H/turn: insert, wait 1 turn, whip 3 pops, receive 20+ overflow.
etc.
Main advantage of whipping workers/settlers is that the surplus food is converted into hammers, so the base production of your city is increased.
EDIT: Now what happens for an item that costs a multiple of 30H?
e.g.:
City is size 6, produces 6H/turn: insert a Library, wait 4 turns (library is
24/90H), whip 3 populations: overflow is
24H (90H from the whip, minus 66 lacking to complete the build, equals
24H of overflow).
Conspicuously, while you converted 3pop into 90H from whipping the Library, the overflow is exactly the same as the hammers invested: for the sake of building something with overflow hammers, that would be completely useless.
(Compare that ratio with the above for more clarity... 1H into Axeman = 26H of overflow. NOT the same ratio.)