I suppose I agree with your statement. I guess the one reason you'd want to match the contour of your mold would be for an imbed. Otherwise, chunks is random I think too that if your chunks are too big, you might run the risk of your melt pool leaking past the chunk and to the edge of the pillar. I guess if your overpour is the right temp, it should bind well with the chunks, eh? Here's a couple chunky pics. A pillar first. I think the chunks are too big: [ATTACH]10976[/ATTACH] And, a chunky votive. These are small chunks, like 1/4" cubes. [ATTACH]10977[/ATTACH] Here is a pic of that pillar burning. [ATTACH]10978[/ATTACH] Tony