I think this video is a couple of years old, and I don't see any threads on these rigs - am I missing something, or did they just not happen?
I have a memory that the rigs actually popped up again at laserperformance.uk some months ago, but now they've disappeared once more. Diego Negri may really be the only one who has any left. (He's also still selling the titanium tillers, which apparently haven't seen great success, either.)The "ARC" rigs were no more than LaserPerformance's countermove to Bethwaite's "C" rig development. The fact that they're nowhere to be seen at LP's webstore is telling. Shouldn't be a wonder if no one's discussing something that no one's buying.