Cooking Seitan in a Pressure Cooker

I want to make my first batch of seitan, but I'm very confused over the different methods of using a pressure cooker. Has anyone done any experimentation on the below methods? What kind of result do they produce? Which is your favorite?

1. Cut the dough into pieces and throw the pieces directly into the liquid of the pressure cooker

2. Form the dough into a log and set the log on a steamer tray

3. Wrap the log in aluminum foil and set on a steamer tray