I began selling VBP months in advance of Second Skin. I sourced it locally and it just so happened that Ant did as well. At the time, SS offered Luxery Liner which is very similar, but with a different foam decoupler. I think Ant realized that the closed cell foam version of the product was better and decided to carry it in addition to LL in his line up.
That's the back ground, but what you need to know is that the product is the same and it is superior to LL in a few regards, namely weight and durability. The only notable difference is that I sold mine in bigger sheets cut off a roll, whereas LLP comes standard in multiples of 24x54" sheets.
VBP had about a year run on the market. I sold literally a ton of it but got burnt out and called it quits. Maybe you can find some that someone has for sale, but my stock is bone dry and I don't plan to offer it again. If you can't, hit up Ant...he's cooler than Fonzie and will take care of you.