Yeah, the 3 man tent per person was quite light, but the group is fairly fluid and some of the others who weren’t there already have 1 man tents. If it was a fixed group of 3 every time then I would suggest new poles for that tent and carry on.
New options to look at then from above:
Phoxx 1UL, Lanshan 1/2, Forclaz
I will float the idea of a hammock/tarp. Plenty of the Network Scouts locally have gone down that route. I can that in a n+1 fashion, if you wild camp enough you can justify both hammock and a tent.
10 years out of Vango Banshee is impressive! Excepting a polycotton force 10, I have never had 10 years out of a tent in regular use. I guess that extra bit of weight on the Banshee may be worth it.