I always swore off mechanicals, especially after helping my cousin track a buck he shot and lost the trail then I found it 200 yards past the last blood without a drop on the ground.
Last fall I decided if I was going to judge something that i'd better try it myself. After looking at all that was out there I went with the G5 T3 due to the blades being totally exposed. Took 3 deer with 2 going through major bone and they worked flawlessly. I wouldn't hesitate to use them again.
A little common sense goes a long way, unfortunately it's in short supply!