One last question, if you don't mind, this might be a silly one:
I read on this forum that the pack shouldn't be much longer than 140 mm, or the canopy won't fit anymore. Looking at the frame, I wonder if there would be enough room to fit a (longer) pack inside the frame though ? Kinda Mikada Logo style. I know it won't be beneficial for the concentration of the mass, and there could be balance issues, but wondering anyway.
Anybody kind enough to measure the clearance insde the frame ?