I've shot a few deer with expandables. I shoot Montecs now, but thats just because I like simple, and I like being able to sharpen my own broadheads.

The expandables I have used gave me nothing but dead deer. I still use Hammerheads for turkeys. By and large, expandables are single use items, so don't be distrought if you tear them up after one firing. They fail only in very RARE instances, and quite often there is a bit of user fault involved. Anything that moves can fail, but you can of course take precautionary steps to prevent this.