As a starting point I'd recommend 16g coffee, 240ml filter water at 90deg, pour all water in, stir well, seal top, leave for 1 min, stir again and press over 30 secs. Stop as soon as you hear the hiss.
Edit: Just realised you're talking about espresso-style coffee, I've never tried that in the AP. The above is for filter-style which is where the AP shines.
As a starting point I'd recommend 16g coffee, 240ml filter water at 90deg, pour all water in, stir well, seal top, leave for 1 min, stir again and press over 30 secs. Stop as soon as you hear the hiss.
Edit: Just realised you're talking about espresso-style coffee, I've never tried that in the AP. The above is for filter-style which is where the AP shines.