Experiment 3

I am currently fusing a piece of glass onto this carved piece of fiber board.  The glass is made up of two pieces.  see example below.  I created this piece by placing 2 pieces of blue on either side of the red piece and firing it shelf down and placing a white piece of glass as a base beneath it.  The design came out well, straighter than usual, so now I placed this piece on top of the carved fiber board 

300 dph..................................................1360 degrees..............................hold 20 mins
300 dph...................................................1465 degrees.............................hold 5 mins
Full............................................................900 degrees.............................hold 1 hour
100 dph......................................................700 degrees.............................hold 1 min
Off

So here is what I am considering, the circle around the celtic design is thin as are most of the other lines in the design.  Additionally the design where I carved them is uneven in the bottom.  I am wondering how this will effect the glass that is melting.