I bought a roll from him maybe couple years ago now, good stuff, if it is the same stuff it is 3:1 shrink as opposed to most which is 2:1, only part that would make It any better is if it was sealant / adhesive lined.
I wasted no time. Took a scrap of no 14 and shrunk a sample right down. Not sure it will go "down" to 16 tho..........It will work good with no14 or larger for sure
On a side story, I don't know if any have tried to use the miserable-excuse-for-heat-shrink that Radio $$hit used to sell. At the time they were across the street from a Wendy's hamburger joint. I sarcastically joked onetime that if I wanted shrink that worked better than RS I'd just go across the street and get some straws!!!!