I load one film into the Paterson reel and then use my fingers to move it to the centre of the real and then load the second roll as per usual.
Works every time for me with no problems.
Bests,
David.
www.dsallen.de
This is what I do, with the AP (Paterson clone) reels with the wide entry flanges, and it works great.
One caution though. When I tried to do this and then use rotary agitation (EDIT: on a Beseler Rotary agitation motor base) during the development stage without a pre-wet, the films sometimes moved a lot within the reels, and ended up overlapping.
So now I add a three minute pre-wet and use inversion agitation for all but the first 30 seconds of the development.
Stop, fixer, rinse and HCA are all on the rotary agitator - and the film seems to stay put.
I use HC-110 dil E replenished, and get good results developing four rolls in the Paterson tank that takes two 120 reels (1 litre of developer). This is very slightly less than my target of 6 ml concentrate per roll, but I rarely shoot four rolls of high key subjects at the same time.