Tom
Fairydown is now owned by MacPac, unfortunately by the time they bought the company the tent "blueprints" had disappeared.
MacPac I think is on the way back to the top.
It is using lighter materials but as strong or stronger than before.
For example , the new tent material is silnylon, so the shelters have exactly the same design but are lighter (15-20%) and stronger. However now you need to seam seal them.
Personally I think that the Minaret (for up to 2x 6' ) or the Olympus for taller ones , are great tents for the rougher Canadian weather.
Franco
(sorry about the thread shift...)