Thanks for the exposure, Roger!
I have been experimenting with bugnets under the Trailstar. There are some other threads on BPL that touch on the subject, but here's my opinions:
SMD Serenity: This works pretty well. The bug net fits pretty well underneath, and you still have a lot of covered space to move around in underneath the Trailstar.
SMD Serenity + BearPaw Tents Pyra Net 1 (custom): In this setup I am able to have two separate bug nets. I had BearPaw Tents custom make what is basically a mirror image of the SMD Serenity. I also added a zippered door at the foot of each bug net so you can enter, because the regular main zippers are now facing each other. Think a pyramid bug net split right down the middle.
BearPaw Tents Pyra Net 2: My fiancee and I took this to Glacier NP. It works better than the two separate bug nets. This is probably one of the only two-person bugnets that would work under the Trailstar because of the center pole. I had a second door put on this as well.
Now for the opinions. Due to the Trailstar's shape, its difficult to get a bug net, other than a bivy, to work really well. I think a single SMD Serenity or BearPaw Tents Pyra Net 1 work the best.
Once you start trying to fit two people in bug nets under the Trailstar, the setup gets a little more complicated and fiddly. There were times where we longed for the simplicity of our Tarptent Double Rainbow, but the Trailstar is a sweet shelter. The bugs just complicate things.
The height of the pitch of the trailstar affects how the bug nets set up. Too low, and the mesh sags. Too high, and you have to find a way to secure the top of the net just at the height you need. I guess the problem comes in when you try to add a fixed pitch bugnet to a completely versatile and variable pitched shelter like the Trailstar. It can be done, and it works, but sometimes its a little too fiddly for me.
One thing to watch out for is bug net length. If your bug shelter is much longer than the Serenity (84 inches, I think?) some of the corners may start to protrude out under the Trailstar's edges. I had the BearPaw bug nets made to the same length as the Serenity.
Sorry for the long response!
Edit: I've wanted to try the MLD Bug Bivy. Not as much room, but might be a much easier setup underneath the Trailstar. However, you and your wife would each need one.