There is about a 12 mm gap under the rollers that doesn't do much for drying, so I made a diverter to force warmed air upwards to the spool (not under the roller). I only put mine on the heated port as I didn't want to restrict return airflow. I then replaced the roller keeping the diverter in place. The OEM roller still spins due to minimal clearance gap.
The author marked this model as their own original creation.