Your 3 person tent under 7 lbs is pretty good... if you need space for 3 people.

I had a 1 person tent that was exactly the size of my sleeping mat. While everything looked nice in the summer, all my gear was left outside which takes the joy out of camping in the rain.
My solution was to purchase a 2 person tent. This tent really has room for 2 people, no gear inside.
I just saw a super small 2 person tent. It would be really tight for 2, but one person would have room for gear... The perfect 1 person tent.

There is no "perfect" set up. Part of the joy of touring is thinking how to do it better, and adjusting as I go along.