I'm using one of Ken's Sunwayfotos and have been very happy with it so far.
Light and stable with a pic rail and arca clamp. The only thing I had to do was tweak the tension on the leg hinge screws and loctite the ball head's throw lever retention screw. That way I could deploy the legs easier and nothing would come loose.
Used it on roos out in hilly country. It wasn't as quick to deploy as my mate's simple vanguard shooting sticks but I was never that far behind, as the ball head has enough travel that you haven't got to spend time leveling the thing. And the rifle was so stable it was practically cheating.
I'd have no problem using it at a PRS competition. A beefier one would be a bit more suitable for that, sure. But I'd never want to take it hunting.
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