In my latest game, going for a histographic game on Sid, I've started giving away cities with luxuries, renegotiating peace treaties for those luxuries, and then cutting the trade route so the AI declares on me. However, in this game in particular, since I had a "war" with Egypt earlier and we re-negotiated after that, the peace treaty turned into a 20 turn deal. Could I have avoided this someway by having "always renegotiate deals" off instead of on? I did have it on in this game. So, after gifting away my cities, I learned I couldn't renegotiate peace, and thus couldn't get them to declare on me... so either I would weaken my (both my RoP and my trading) reputation by starting the war, or leaving Egypt alone for 6 turns (if I finished off England and Persia by then). See the ST save for more details on this particular point.
I've also decided to include some other saves from this game (and I have many more if anyone wants to see any). A few times throughout this game, especially with how I managed such a huge cash flow, I've basically decided that even if I struggle a little at first with naval landings, I'll learn how to handle it (not quite sure why I have a hang-up on this... I just haven't done this much on Sid... and I'll probably want/need defensive armies). I think I'll still go with maximum opponents, to increase the number of luxuries/resources available (if I'm correct on that). I also think that even if I had beaten SirPleb's score, which I do believe I could have done, I would end up much happier with the growth from the agricultural trait. Though, China looked a little more appealing due to the larger number of elites than can get, after a while I still had plenty of armies from cash-rushing, and plenty of cavalry (almost all upgraded from horses) that even without armies, I would do fine.
From my two large Sid conquest games (one with the Iroquois and one with China), I've tried to various things with all the cash I make. In my standard Maya conquest game, I had let horseman complete via shields, and then upgrade them to knights/cavalry. In the Iroquois or China conquest game, I felt I had started sitting on too large of a treasury at some point, so I started short-rushing horses, often with spears... sometimes from nothing, buying a worker first, then a spear, and then letting the horse complete in a 10 shield per turn town. That seemed to deplete my cash a little too quickly I think in the China conquest game, so in the Huge histographic canned game, I decided to forget paying 80 gold for a worker.
15 shield cities built a horse-rider/cavalry in 2 turns (upgrading in the interturn). 10 shield cities also did this in 2 turns, but by using a spear and later an explorer for short-rushing. Post-golden age, 20-shield cities did spear-muskets every turn (which I may have overbuilt, but I probably don't mind that). Cities without 10 shields would mostly do something else or finish a horse completely. However, at some points, especially at the very start of the Persian war, I had some cities with any shields in the box cash-rush a horse-cavalry, as I had Sun Tzu's and Leo's... which I had worked to capture (especially Leo's). I kind of hit a snag running through the jungle, and had to run around Persian units going to attack the Ottomans for Leo's. I also cash-rushed armies, while using horse-cavalry upgrades, but only cash-rushed armies after I had started the Persian war, as I spent a lot of gold the first turn in upgrades that turn.
In my Maya pangea Sid game which I had stopped playing long ago, but hadn't entirely given up until I started this one, I had NOT cash-rushed infrastructure. But, in the China game (and I think it worked out best to do so), I did cash-rush granaries, markets, a few libraries, and barracks once I felt I had enough cash to continue getting gpt from the AIs. Markets I cash-rushed for happiness. I didn't, however, cash-rush banks, since I put those in purely to make money.
There's something about resistance also, which I'll use some of these files to test here...