Wow...Thanks Tiffany and Erik. I've amended the same way (50 / 50 with native soil and "Amend" - I've never heard of FaFard 2) in the past and that seems to work ok. We have really heavy clay here so whatever I can do to "loosen" that clay is helpful. Although I've never heard of "spiking" the bottom of the planting hole though. That actually sounds brilliant - unless I'm missing something. Which is ENTIRELY possible since I'm such a newbie!
Having said that...I've never heard of cutting the bottom of the root ball off either.
Erik, can you explain the "frizzle top look" please?