Hi, I am new to glass fusing and I really hope someone can answer this question. I have been using Spectrum 96 tested glass with CBS96 Dichroic. After I get my pieces (all smaller than 2" square) set up on Bullseye Thinfire Paper on the kiln shelf and start the kiln I check thru the window and can see nothing has moved. but every time the kiln reaches about 200F, I notice the pieces have all come apart. Why is this happening. I have seen where some people use diluted glue to glue pieces together, but I am under the impression that the glue will only hold till about 300F, so eventually they will slip around again. Ramping @ about 350F/hr when occuring. Using 7x7" ceramic shelf on 1/2" kiln posts. Venting top about 1/2". Also, most pieces are 3 or 4 layers of 3mm glass sheets, all smooth and stacked solidly. Thank you for any help!!!