1. i dont always wait until i have to go, but i am still trying to get a decent picture of how many times i go in a 24 hour period, so im counting still, therefore i will wait until a small amount of discomfort/distraction kicks in before i go sit down. if i know im going out for the night, or to a friends house, or a bar, or a concert, etc......then ill sit there.
2. for me just sitting normal seems to work fine...after the initial push or release, sometimes i will lean to teh right, and/or twist my torso to the left while lifting my left cheek up, and it will allow a gas bubble to push another round of stuff out. (seems strange i know, but i only discovered this because i use a hand held portable bidet and have to lift my left cheek to get the bottle down in there, and noticed it was releasing mre gas).....i also sometimes stand up for like 4 or 5 seconds and sit back down, and sometiems this allows more stuff to come out......lastly, if i also have to pee, i try and BEFORE PEEING get the first release out, THEN start peeing. almost always, after i have emptied my bladder, more stuff wants to come out of my butt.
3. i dont really push at all, except as i feel the first "burst" if you want to call it that coming to an end, i push a little bit, just because the butt hole starts to tighten up.
4. it depends on what else im doing in the day or where i am.....sometimes i still sit on there for 10-15 minutes just to let gravity do some more work.
ps i am 8 months post takedown if that matters for you to hear it.