Had another conversation with Thermotech. They confirmed the use of the zeros (apparently PHIUS is in agreement with this) in the PHPP for Psi spacer and Psi installation. This makes a huge difference to the energy calculations reducing specific annual energy by a kWh/m^2 or more.
Also the cost of their windows with the 322Gain+ triple pane glass is about $65-70/SF depending on options. The windows come with or without installation flanges, with or without brick mold.
No tilt and slide patio doors available - so this is an issue, since I don't want to pay shipping from europe for just a couple of doors.