That' what the books say for a passive solar house BUT my design is L shaped with 1/2 of the house running south to north,  and about 1/2 runs east to west.  My concern is that with 1/2 of the house off the east west axis there is less of the slab in direct contact with the southern sun.  There will so some migration of heat in the slab but I think I am over glassed at 11% (window sq foot over total sq foot) and I am going to make a very hot 1/2 of the house.  How does one work this out?

I don't know. Maybe you could install a duct with vents in the ceiling(in the hot area) and pull the heat into the cooler area with a temperature activated inline fan. In the cool area you could either just exhaust the air into the space, or maybe run the duct under the floor attempting to warm it prior to exhausting the air.

I've designed my home with the passive solar windows. Most windows face south, with the extra LoE windows on the East, West and North side of home.
I am adding a conditioned ducting system, with 2 retrurn grilles and ducting. This will allow me to switch on the air exchanger and cycle the air in the summer and winter. The air cycling ducting system can be set on a thermostat to go on in the winter and summer months. The system can also be set to add from 0 percent to 100 percent outside air to relieve stale air from inside home.
Not sure if this is the ideal system, but will work for my home.

Richard
Home Owner builder
New Mexico