I usually use a schedule like this for either S96 or Bullseye:
100C/hr to 220C for 20 minutes; this is approximately the crystobalite inversion temperature – to be kind to the pot.
220C/hr to 570C for 20 minutes; this is approximately the quartz inversion temperature – again to be kind to the pot.
220C/hr to 677 for 30 minutes; this is a bubble squeeze temperature to allow larger bubbles to escape from the pot before melting begins.
330C/hr to 850C for 120 minutes; this is to ensure there is plenty of time to empty pot.
AFAP to 805C for 30 minutes; this is to allow thickness equalization and also to allow bubbles to pop and seal.
AFAP to 482 for 90 minutes; this is for Bullseye, but is applicable to other glasses too.
55C/hr to 427C no soak (for 6 to 8mm thickness)
99C/hr to 370C no soak.
120C/hr to 150 end.
Allow to cool to room temperature
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