Latte art can be tricky and generally just takes LOTS of practice but the key is silky milk! It soundsl like youre doing most things right. Some key points before I start: must use cold milk, must complete stretching whilst the milk is cold. I will just go down step by step based on your points:
1 - 4: No problem here
5. Just purge the steam wand - 3 - 4 seconds is fine
6. Sink the steam nozzel under the surface of the milk about 1cm from the edge of the jug ( you want to think about creating a whirlpool once stretching is done) you may need to angle the jug.
7. Open the steam valve about 1/8 turn and lower the jug slowly until you hear the stretching sound (the nozzle should only just break the surface of the milk). The silvia has quite powerful steaming capabilities so 5 seconds or so (in a 400ml jug) and you should have enough foam for a cap/latte. As the foam is being created, the level of the milkl is rising so you may need to keep lowering your jug to keep the nozzle on the surface of the milk.
** You want to try to finish your streching BEFORE the jug starts to feel warm - once the milk is warm, if you continue stretching you will get big bubbles that just refuse to pop!**
8. Once stretching is complete (or the jug is starting to feel warm) sink the nozzle under the surface of the milk (and try not to let it break the surface again!) - now we are heating the milk - you can turn the steam valve up now if you want to. this is where the whirlpool is important, it will keep the foam and milk combined throughout the heating process.
9. When the milk is at desired temperature, turn off the steam.
10. Give the milk a couple of seconds for any bubbles to rise to the surface and give the jug a couple of taps on the bench (flat) and swirl the jug to combine foam/milk.
Now that you have silky milk ;) we can move on to pouring. If you want to evenly distribute the foam and get art on each cup you will need to split the milk. Take your 2 cup jug of milk you just stretched which is nice and blended and tip off the excess foam (maybe 1/4 of whats in your jug) into a second jug/cup/glass - set this excess aside.
Take your jug and pour your first coffee from start to finish.
Tip your excess back into the original jug and blend - now you can pour your second coffee from start to finish.
** If you dont split, and you pour one coffee then the second - all the foam ends up in the first coffee poured, leaving none for the second - if art doesnt matter, you can half pour each coffee and then top them up to evenly distribute foam.
Start with cold milk
Strech whilst milk is cold
Silvia has better steaming capabilities than you think - 4-5 seconds in a small jug is enough for a cap/latte
Split the milk before pouring for even distribution.
I hope this helps!! Please feel free to contact us if you have any questions or need more tips - sometimes its easier to explain something over the phone than in text...