Thanks Jeffs, so the fed 1 has basically the same spool arrangement as the fed 2.
I have just managed to load the ruddy thing!
There's a clip by Yaniv Berman on youtube called "Altix V - My Photographic Time Tunnel", and in that he trims the leader so that the end fits more or less halfway up the take-up spool, and it slots into the spool and doesn't slip out, he then puts the spools and film in the camera and fires one shot and turns the film counter to 1 mark past 35.
I'm not completely sure I've been doing it correctly, as the rewind spool doesn't turn for the first couple of shots, and only turns a bit on subsequent shots. It's also hard to tell when rewinding how close I am to the leader being where it would come out of the take-up spool on a normal camera, as the little metal plate in the take-up spool absolutely HATES letting go of the film, and so far I've had to take both spools and film out so that I can wiggle the leader out. Or rather so that I can snap the leader out of the spool and use a pair of tweezers to get out the bit of leader that remains stuck in the spool.
Hopefully I'll improve with practice, and the little metal plate will become loose enough to not have to fight it.
Jeffs, I've just noitced what you wrote about the shorter of the two axles having been cut off, mine still has both axles, as does the on Yaniv has in the video. Mind you, mine's a III and Yaniv's is a V so there could be a slight difference.