Happy with the Montec. They are durable and spin very true, and grouped with my field points (as did the Aftershock). The shot was a complete pass through, buried the arrow about 6 inches in the ground and the deer kicked it up as he ran off. Found the arrow about 20 feet from where I shot, leaning against a tree (pointing up).
Cleaned the arrow and put it on my roller- evrything is nice and true, no damage at all to the head or arrow.
I'm having a little trouble putting an edge back on them, but I've seen some suggestions posted elsewhere here that I'll try.