Matt, that was quick.
As I understand it, you just slip the film header in-between the super wide flanges then twisting each side to get forward motion is the go?
Really looking forward to a video now.
I see it is compatible with most tank systems, probably everything except Jobo,, of which I have shed loads in a huge box.
Compatible with Paterson mainly.
Flange A and (film path topper) C are connected to the top set of channels, and slide back and forth adjacent to Flange B and (film path topper) D, which are connected to the bottom set of channels.
You insert the film into the A:C and B to D gap - the dotted blue line - until (with 35mm film) the sprocket holes and the ball bearings engage.
Then you twist side to side, as mentioned.
When the reel is set wider to the 120/220 positions, a gap of about an inch/2.5 cm appears between Flange A and Flange B (as well as the corresponding film path toppers C and D). There still is though enough of a "runway" formed by A and B to make it easy to use one hand to insert the film into the A:C and B to D gap and push the end past the ball bearings. Then the film is advanced in the same way - twisting side to side.
There is an intermediate 127 position as well.
For comparison, a standard Paterson reel, with its relatively small and harder A:C and harder to locate B to D gap.