Just for an example... I've never had the privilege of anyone showing me how to really properly tie in nock sets, or how to serve in peeps correctly. I've perused a ton of websites, and found all sorts of different ways. I started using LeEarl's method after watching his DVD, which is essentially a series of half-hitches. That was OK, but left a bit of excessive "knottage" on one side of the serving...
I've been watching GRIV now for a few times via the rewind button, and I just completed some on my own ... SUCH a cleaner look!
It is funny you bring this up. I had always tied mine in the "GRIV" way but since I started working down at the shop I have been utilizing more of LeEarl's method. I think I picked up the latter from a PSE program.