Hi Ricky, pardon the temporary derail. The Dual bollard was designed with several incentives i.e. cradling large horizontals -
http://www.arboristsite.com/showthread.php?t=105814
Speed-lining,
Load transfer between trees, or rigging points,
Load-sharing heavy blocks i.e. better heat dissipation, half the wear/strain on the ropes/slings etc, the ability to stop a log suddenly but with only half the risk of breaking the line. In all, the ability to safely manage bigger wood all round :
http://www.youtube.com/watch?v=BjqJs7YYnMo
RE: wraptor
Congratulations, I would have one in an instant, and I might in 2011 depending on how things turn out. I'm a spurs and flipline man myself, but we still do our share of big puning jobs. It seem's the guys who've bought them so far all seem to say the same thing, wish we'd had one years ago!
If/when I get one I'll have to brush up on the throw line though, to say I'm woeful is putting it kindly.