I allso use a Dahle 18in cutter. I went to the Home Depot and made a wood extention out to 20in. I use of all things 2 auto jack stands 12in high to hold a 1in dowel rod with the roll of paper on it .I do all my cutting at night, and store the paper in the same bag as it came in.
I just cut up 1 roll of new Fuji type 11, and am printing with none of the recent reported problems..I allways use nitrate gloves
One problem i did have was to keep the cut edge at an exact right angle .Before i start cutting i use a carpenters square and trim the end of the roll.