re-fusing the same glass

[suzanne]

Hi there

I am putting the same piece of glass into the kiln for either multiple fusings or 3 separate firings of fusing, then tack fusing, then slumping .

I was told once that each time you put the piece back into the kiln, you should increase the time (double it) at the Annealing Temp and half the rate of cooling from A.T. through to 730F .

Is this the case? My pieces, post-fuse, are generally 1-3 inches thick...just wanted to check cause that's a lot of hydro...

Thanks

Suzanne