I just used it for the first time today.
After letting the metal/heatblankets come up to temp (270F) I put the (soaked) wood in and immediately started bending, waist first, than lower bout, than upper bout/cutaway, at that point the blankets were turned off and it cooled for an hour before taking it out of the bender.
What I got was less than perfect, some scorching and quite a bit of spring back.
Any suggestions on how to use it better?