USING BILLET IN THE PYRAMID POT MELT

This is beautiful green billet that I am melt in the pyramid pot melt.  I cut it a long time ago but I believed it weighed a little under 10 ounces, the amount I determined was necessary for the pyramid pot melt.  I placed the glass over the mold, not like you see in the picture, but instead I took 2 smaller pieces and placed them in the crevice of the mold and put the 3rd piece which was larger along side and on top of the others, hoping to minimize the glass falling outside of the mold.  Otherwise I used the firing schedule from Bullseye pyramid casting mold 8948 as follows.

200dph..........................................1225 degrees.....................................hold 2 hours for billet
600dph...........................................1525 degrees....................................hold 2 hours
Full...................................................900 degrees....................................hold 1 hour
6 degrees...........................................800 degrees....................................-0-
12 degrees.........................................700 degrees....................................-0-
off

The billet came out beautifully.  It did look good however, there were many rough spots on the side, the mold is ruined and I am thinking that perhaps it was because of the way I stacked the billet above the mold.  Bullseye suggests.

 to layer the billet like a triangle for smoother edges around the finished base.  I did not do this so my glass stuck and there were other problems.  So when I try again in the new mold I will have 10 ounces of billet and I will layer it like they showed me in this information sheet.

Continue here with how it came out, although I did not use the prescribed layering method.  Mention trying sand paper to get rid of kiln wash, getting scratches and trying to firepolish.  Although now  I read that you should only use firepolishing with a flat piece, since firepolishing comes in at slump temperatures and you dont want to change the shape of your piece or make it slump.  So I will continue to cold work the pieces as much as I can.  Here is the result .

Pretty, the glass from the billets looks beautiful except for those marks that are perhaps from kiln wash that wont come off.  Am soaking it in vinegar and water.