Here are some of my experiences with the Delonghi Dinamica with the chance that it might help someone out there with a similar machine.
It is finally starting to make sense now. I think that when I first got the machine it was exciting to be able to program the volume to exactly fit the glass that you use. This is more of a pipe dream when it comes to dialing in the perfect coffee....
Tested the "Coffee" option today with some junk beans, stopped after the grind and it came out to 11g coffee with the max 5 aroma setting. Coupling this with Lance Hedrick's 1:17 coffee to water ratio for the pourover, that should come out as a 187ml drink while mine comes to 180ml, close enough. So basically the water ratio is pre-programmed already and you probably shouldn't faff around with that until you have mastered every other option.
So assuming that you have this perfect 1:17 ratio already programmed into the machine by default with 11g coffee at the 5 bean setting (have only set the "aroma" bean amount), then your only variables to play with at the beginning should be the grind setting, machine temperature, and the beans that you buy (Lance would also say the water that you use). Grind setting 3-3.5 seems to be right (can check your pucks as well as the taste), temperature perhaps at high for light roasts, haven't tried proper dark yet but will do for ice coffee and will try dropping the temperature down to Low (will use Doppio drink into a certain amount of ice). But they can't be oily beans or will jam up the grinder.
Oddly enough, I have been enjoying my unique drink of 50ml Hot Water and then an Espresso on top, a "Medium Black" perhaps we could call it. Other than that the Cappuccino for coffee beans that I don't like much, Coffee for beans that I do like, Doppio for ice coffee in the summer, housemate drinks Macchiatos and Lattes. That means we are using almost every drink - not using Hot Milk, Long, nor Flat White, but I can see myself trying those again if I am experimenting with the Hot Milk (like my Medium Black, or to put coffee first and milk second), Long potentially will try with a nice light roast to max out extraction (double grind), and Flat White if I actually do like the coffee and want to try with milk. It seems that Long is the only drink that grinds a second time after about 100ml coffee has poured.
Lastly, I tried the pre-ground bean chute, because I accidentally bought pre-ground, and it was very watery, under extracted. This is disappointing so I'm not sure what else I can control here. I will use the pre-ground coffee to make proper cold-brew in the French Press instead.
Hope this helps. Please share your tips and favorite drinks if you have any! (especially around ice coffee and ice latte if you have figured this out)