Discus Dental has come out with a new delivery system for warm gutta-percha called the HotShot. The temperature of the gutta-percha can be set up to 230 degrees Centigrade. It has the advantage of being cordless. This is supposed to be used for a backfill. Has anybody tried this and if so, how did it work? What did you do to fill the apical area before you used the backfill?