One more thing.............unless you are shooting the practice Montecs you are going to need to resharpen those heads that you are shooting into your targets. They will not be sharp enough to hunt with after repeated shots into a target.
This is VERY good advice.....and the most important point I take from this thread.
I use the G5's, too.....and I shoot their practice heads. That way...you never have to worry about theedge on your hunting setup.
Jeff