the bigger Telemarks suffer from much less glide because of the
width and (usually) much less camber (sometimes none!) to keep the grip
zone up

I've noticed that with the wide "mainstream" backcountry skis The
first pair I BC skied on in the Sierras were the Karhu 10th Mountain.
Those things had no camber, weighed a ton and had no glide at all. I
guess the whole point of "mainstream" backcountry skiing is downhill
part... the kick and glide part and the uphill part are mere
unavoidable inconveniences you have to go through to ski down a
mountain. The E99s work magic in kick and glide.