Just a guess, but I've noticed the more slippery or slick/shiny the silicone is, the more likely the silicone is able to leech into the oil.
I almost got rid of all silicone/teflon in my production and storage.
I'm still using parchment for storing my oil, but now I get the brown cheap parchment, it is not nearly as shiny, but still works great, some of the sappy shatters have to be placed in the freezer for 30 seconds so it won't stick.
And, believe it or not..I'm using the brown grocery bags also for storing, same idea, just toss in freezer and it pops right off.
These Slick Pads, and Nogoo products are really cool, but I believe they are just taking advantage of the booming market of hash oil.
Of course all of what I just posted is simply my opinion, and I could be WAY off.
How the hell you doing VP?.. Been so damn busy with my garden, I don't get much time to post anymore.