RE: I bet he can't do this again!!!!(video)
Did he actually lace it perfectly through the hole or glance it off the disc into the hole? The only reason I ask is because it looks like a fletching or nock comes off the arrow like it wasn't a smooth penetration into the target. BTW, I think your buddy needs to lower the poundage on his bow a little....he looks like he is having more trouble pulling it back than he should.
In any case, its always great to pull off those trick shots...it really is a confidence booster sometimes.