I know of some mixed (not so good results) with Montecs and have worked some bloodtrails that were not too impressive. I do love the toughness and straightness, but I do not think they produce the hemoraging that the ultra-sharp replaceable blade heads do on similar hits. I personally think the Strykers and Slick Tricks are a better choice than the Montec. I like the way the durability, blade retention system, and the way the shuttle t's shoot, but again, I don't feel they are as sharp as the others so sometimes the blood trails are not as good on marginal hits. If you're not a great tracker, you could have some issues. I have shot 3 elk with Shuttle T's. On the other hand if you look too hard at a Stryker or Slick trick your eyes will start bleeding.
Now... just wish there were more options for my Injexions with Deep Six!!!!