The Spartan bipods are also being tested by members of special forces for ultra light weight sniper systems. I don't think they broke one yet.
The gunsmith adapter version fitted flush is a solution to some hunters who don't like anything sticking out the bottom of a forend especially for high seat shooting. I will try the Javelin and the Spartan 300 this summer or fox as our rifle has two adapters fitted. One for the font bipod and one far back for the tripod. I met Rob at the IWA and it sounds as if there will be some new goodies on the market soon.
edi