I tried slumping an egg platter for the first time. It is a 13.5 round platter that I used 90 clear glass, 1/4 inch glass. I and happy with the slump of the egg indents but the edges where it slumped in to the egg indents pulled in and did not come out even. It looks like an uneven flower around the edge and just not good. Is there any ideas to slump the so the edges come out even and nice nice? Thanks for any advice, Kaylajl100