I hunt moose so in my opinion fix blade broadheads are the only choice. I wish we`d pass legislation against mechanicals for moose. I think that some of the tuning problems that bowhunters have with fixed blade heads can be attributed to trying to tune a highspeed set-up to shoot broadheads. Most highspeed set-ups are very unforgiving of a mistake in form and if you combine that with a fixed blade head you will get very erratic arrow flight. Moderate speed with a good head AND good form makes for great arrow flight.