While nice to generate money, this is a waste of your IW and a GG imo (I mean stacking so many prod multipliers doesn't make sense, it's better to just split them in three cities, to avoid wasting the bonus producing other stuff than troops and because the diminushing returns...). But I am sure you know that already and it's a little OT
Cheers
This was in reply to a suggestion to use your IWs to hammer out ; which I do not support either. Heavy production should be used to produce heavy units, wonders, and projects. Thus I'm a huge a fan of having at least 2 dedicated cities; IW (possibly with WP) and HE. Most often I throw in Maori/RC and often the B cap with mass watermills.
Kesshi:
1. A SE is not fully mature until you can get the health to max out food production. If you go for the heavily overlapped SE, then I'd definately toss in Medicine/Corporation for Sushi or Refrig for CM. All told this may be as late as ecology/genetics. Some games just don't have the health to maximize a SE before then.
2. A CE can be fully mature without democracy. Eman is nice, but it is quite possible to work up all your cottages by the time you get there. Just as long as you have the mids, a mature CE can skip on demo until happiness becomes a problem (if ever).
3. A SE EE can compete late game with spies. Firstly, you get a bonus 25% off the top with nationalism; CE cannot take that long term without losing out. Secondly due to the magic of espionage the rate of return on espionage can compare insanely well with direct research. Lastly, all the espionage buildings are relatively cheap and you are going to build two of them anyways.
PoM: I didn't think WBs got the PS bonus; but then I've never actually been building WBs when I've been in PS except replacements for burnt boats and those are always 1 per turn.
UJJ: Yeah, when I need overflow gold I'm normally jumping straight to GMs; most often though I'd rather just pump out units with high promos to go conquest more gold. GMs actually are not that great at boosting your power rating and are rather expensive to mothball.
PoM: Yes you can use WBs as decoys. Better if you have a movement bonus (either from circumnavigation or refrig) you can lead AI naval units on a long and fruitless chase with them. You don't, strictly speaking, need the movement bonus, but it is exceedingly useful. As long as the unit doesn't have another specific target you can lead away huge amounts of naval forces with just one WB (also damaged units work well).