FWIW - i have done MANY ski re-glues. I use a hot cauterizing iron and make sure to get every last bit of glue off. I always use the BD sheets (without any problems) I trim them to the size of the skin (mm less so glue doesn't overflow). Use a HOT iron (key) press down and move SLOWLY up the skin. I follow the iron with a roller for additional pressure. Let cool completely. put skins together; pull apart; if ANY glue releases, I do it all over again.
The only time I have had to do it again is on skins that were super old, when I didn't get all the glue off, or there was one year (can't remember) when BD skin backing was defective.
My skin re-glue (with the sheets) is going strong 2+ years, lots of use and is still solid.
I use the old glue in a ball to remove glue stuck to skins but the trick is to be meticulous and not get it on there in the first place.
I think the gold label is good for fixes, but due to its toxicity, I would just use a slice of the sheet.
Not a scientist but I reckon that if the hydrophobic application they put on the skin leaves toxic traces in the snow then so would the extra toxicity of the gold label.
