Think about how you load the reel. The leader always goes in first. The tail is the part of the film wrapped with the tightest radius around the spool. The more the film has relaxed into this curl through time and temperature, the worse it will be. Since you know that no images will be within an inch of the tail cutoff, you can massage your fingers over the film while bending it against the curl over a dowel rod. Or you can pull the entire strip off the spool and feed it in tail first. That works best with SS spools, but tends to make plastic spools jam on feeding.