When you receive the device and start shooting with it, there are some tricks that will help you get great images. It took me a couple of days shooting with it for two hours in the morning and two in the afternoon to get the hang of it. Don't give up after the first hour.
Using the BushHawk is a lot like shooting at quail with a real gun except you do not have to lead the birds with the sights as you fire rounds. You do have to keep the focus point on the moving object (bird) as you pull the trigger. I found that it worked best if I eased the trigger back for each shot, letting the focus work as I pulled until the shutter started firing. When you first start, you may have a tendency to jerk the trigger back causing the focus to move off the target.
I would typically shoot two or three images with each burst, but I noticed that David shot at least twice as many as I shot with his bursts. If you start with the target in the middle with the focus point on it, and move smoothly as you track the bird, you will get better results.
Like a gun, the device is far more stable if you brace it properly with both hands...pulling the stock into your shoulder with gentle pressure. If I was sitting on the ground, I would prop one of my grip hands on a knee to add more stability.
I took the foam covers off the stock (back) to make it easier to raise and fire fast. The foam kept catching on my shirt...slowing me down.
The beauty of the BushHawk compared with a tripod is that you do not have legs to trip over. You have full range of motion except possibly straight up...you can fall over backwards.
By my last day of shooting with it, I was getting far more tack sharp images than when I started. Of course, it helped with David there giving me tips.