I have the Delonghi Dedica EC680M, recently swapped the stock steam wand for the Rancilio wand. I have pretty much 0 experience steaming milk, and this is the first time I've been able to have milk lay on top without being a formless blob! Just super excited and wanted to share lol
I steam milk for latte's quite a bit. Tip carafe so wand tip is at the side just under the surface of the milk, with the stem against the spout. Engage steam just enough to you hear a tearing sound. Gradually lower the carafe to maintain the tearing sound for 17 seconds,(the sound changes) then immerse the tip until the carafe is getting too hot to touch. Then a tap on the counter, and a couple swirls to break up bigger bubbles.
I would also like to add that the milk and foam separate very quickly. With my machine it starts even before the milk is fully ready, so i like to pour the steamed milk into another carafe and back then the taps to ensure it is properly mixed for best results.
Also just additional information: I know it's not great but it's at least a start! Due to girlfriends allergies, all I have to work with for the time being is oat milk (Chobani Extra Creamy). I'm thinking I could get better results with more practice, but I'm not sure if there's only a degree of perfection I can reach using this milk alternative. I suppose time will tell