Smeg S64SN Einbau-Gaskochfeld, 60 cm, 4 Brenner, schwarz

This hob looks great, and works well, but there is a knack to igniting the jets. The instructions say, push down, turn and hold down for 2 secs. I was doing this, but mostly the jets went out when I let go, even when I held it down for 10 secs. However, I now know there are two levels to pushing down. So to light this jet you have to push down an extra bit to make sure the flames 'stick'. It's not hard to do, but the instructions don't explain this, so I had a frustrating first week trying to ignite the jets consistently.