The 7th Sense has Victory arrow shafts as Upper leading Edges, I`ve done a lot of research on arrow shafts in my quest to find an alternative to pultruded and Skyshark.
Ok I`m a cheapskate but can get a hi-modulus carbon shaft that has a stiffer deflection and an equivilant weight to comparable Skyshark (straight, not tapered) for £2.54 a shaft.
So I`ve just checked and these Victory VAP shafts are quite good
maximum weight for a .5" deflection is 6.0 gpi (grains per inch) which is lighter than I use (6.3gpi which is 13.6grams over 82.5cm) so about 13g so about skyshark P100.
I have no idea about the construction but as mentioned above I think he has come across a job lot of home builds and selling them as is.
I`m not surprised in the least someone has copied the Superfly
I`m amazed the Chinese havn`t started selling their version of the "Superfry" yet!