[glasshouse]

You can sometimes see a lead "bloom" if a heavily leaded glass is heated incorrectly. Once Cynthia and I were playing around with her
Satake and japanese torch. We had something wrong (the air pump was too small for the torch) and even the white opaque was boiling
and off-gassing lead. (Basically reducing.) As soon as we realized it we stopped. It was a little scary! The tip of the rod was metallic.
I have never seen opaque white go metallic like that. I think the Satake lead colors do have a lot more lead than the regular 104 line.
It will be interesting to see what the Devardi glass is like. Fortunately it's inexpensive and if I don't like it, it can keep my Satake company.