I am going to try patterning some conicles later this week that someone poured for me, and I have a question. They have a solid, flat base, rather than a hollow base that will flare out upon ignition. Should I be using some sort of wafer between the powder and the conicle, like a T/C Bore Button or something similar? A friend of mine said they improved his accuracy and consistency dramatically when he did. Thought I' d throw it out here to see what you guys had to say about it.