Thanks for the feed back. Yes this is an actual home. There are discrepancies/errors in the version I have published. I have corrected some, removed unused links, added missing switches to some links. The owners like what it does now, so I do not plan on any more changes until they request changes.
The decision to go with remote switches or virtual 3 ways really depends on what bugs you. Do you like the feel, if you are not concerned with the color of the LED and do not have need for a switch operating something different than the 3 way then go with the remote switch. The remote switches are ok and you can use old x10 remote switches. They effect the UPB switches the same as x10. More savings.
In this home there is a 3 way in a location that they would never need so I put a transmitting switch to control the porch lights on the guest house up the hill. They can turn those lights on and off, dim and bright without walking the 100ft up to the guest house.
I have mostly PCS WS1 switches in this home with one SA US 240 switch in most locations for scene control. I have set all LEDs to solid green. The owners preferred that look around the house.
Thanks
Dave