the other day i was thinking about jamming a cone into a soft horn. it seems like the physics of this act could lead to some unnecessary splits. so i took a piece of 1/2" ply wood and scribed a circle of the approximate size of the horn base. then i tilted my bandsaw table to 10 degrees and cut into the edge of the circle, then cut the circle out. in my mind, this allows for a little bit of spring tension when the horn is inserted and due to the outside tension, it shouldnt crack horns. tried it a couple of times and seems to work. but i am very new at boiling and rounding horns. please let me know if anyone else has thought of / used this idea and what you think of it. mark