I went through such questions recently and opted for the custom edge route because I had a cast iron guarantee for accuracy. If it wouldn't shoot, it didn't leave the shop until it did. With the custom, I got the knowhow of an expert who gave me all (ALL) of the reloading info and ballistics I needed. No load workup required. A guarantee to group 3 rounds inside a 1 " box at 300 yards is peace of mind for me.
As it turned out the gun ended up being everything promised and more.
I have never done much serious long range work, and don't consider myself any better shot than the next guy. But when I shot the rifle at the first 800 yard target, and hit it dead centre perfect, I knew I had made the right choice.
I love the blaser and TRG, and looked seriously at both. I dont believe they offer such accuracy promises though unless I can be corrected ? I'm also fairly sure you will still have change in your pocket with the edge over the other 2 ? Maybe bang an NXS on top just for fun ?
Any of them will kick ass for sure !
Keep everyone posted on your progress.
With each step in the bush, you are a step closer.