So, after finishing my last game, I finally decided to give this a go. Since most people seem to play ironman, I decided to make it an ironman game as well, this time. I will show screens of what is my second attempt (not counting the ten 10 I restarted after a month or so to get a feeling for how the alliances in the region tend to pan out). The first attempt reminded me why I don't usually play ironman. It was abandoned about 20 years in after I tried using TMIT's convert to animism trick to honor the great Alpaca in the Sky, but forgot that you lose your allies when you convert this way, which left me in a bad position with Manipur my only ally. Manipur then stupidly attacked Ava, and I honored the call, which was a stupid mistake since Ava was able to subsequently secure an alliance with Ayutthaya. After I won this war by going deep into debt, Ming decided to come and play, and I decided to call it quits and try again (I also had a terrible 2/0/2 heir).
The next attempt was a lot more serendipitous. Apart from a godlike 6/3/5 heir and a White Elephant event (+1 stab), I was able to secure an alliance with Mong Xang, Ava, Dai Viet and Khmer, and draw all of them into a year against Taungu and Ayutthaya, allowing me to take the province of the same name. The next war, I secured Pegu and force vassalized Hsenwi, after that it was pretty standard alliance and truce juggling in order to continue expanding my budding empire. The wars were harder than they usually would be. First, there was the -10% discipline, which I am only now in the process of removing by allowing Hindu rebels to roam (the animist provinces were converted too quickly this time, but Hindu is probably better anyways - though I really like the Holy War capability of Animism). Second, being in tropical all the time is super annoying, and my infantry mostly consisted of mercenaries for the whole game - leading to not being able to afford my full force limits a lot of the time. My navy is still tiny as a result as I haven't had enough money to build it up yet, which exacerbated the problem to some extent.
At any rate, it was still a very successful run. As you can see, I just finished my first foray into the Malacca node, having previously conquered Bengal for the first time in an epic war. They were allied with Bahmanis, Delhi and Malwa against my Jaunpur and Tibet. Unfortunately, my allies were behind in mil tech, so the first leg of the war, mostly faught in Jaunpuri territory, was rather unsuccessful despite a nominal number parity and my kickass 4/3/4/1 general due to Jaunpuri tech disparity and my 90% discipline being used in joint battles. Switching gears after two years, I decided to besiege the war goal Chittagong and vicously backstab my ally by signing separate peace Delhi by giving them some territory from Jaunpur, and Malwa by offering annul treaties with Jaunpur after beating them in a battle. Jaunpur signed their own white peace, funnily giving some more territory to Delhi despite them not being in the war anymore. Only Bengal and Bahmanis were left, who were too weak to beat my troops, and finally I was able to white peace out Bahmanis and, after six years, I was able to secure a decisive 100% WS victory against Bengal, which included annuling all their alliances (which I hope won't all reform).
I decided to take influence ideas after my first failed attempt to make it possible to gain alliances with people of a different religion due to the +dip rep, and also because of the other benefits like vassal annexation cost and cheaper unreasonable demands (which stack nicely with despotic monarchy). The idea group is already finished, by my dip tech is still at level 3. As you can see, I am currently integrating Hsenwi, which will cost me about 1350 points total. My mid-term planning involves securing the Bengal, Ceylon and Malacca nodes and trying to westernize somehow, although I'm not sure how to best approach this. I don't have visual on most of the African coast, so it will be hard to get there. If I can find a small vassal somewhere in the area, I will try to go in with a no-CB.
Edit: Hmm, 1.13 patch just in. Might be interesting to restart this for some of the changes to Buddhism and stuff.