If I weren't running true type rears, that's just about the only ones I would consider.
But, Charles is mainly referring to eliminating the additional camber (and toe!) created when the rear is compressed. Adjustable arms won't give you the ability to dial that out, just somewhat correct for it with more positive camber when unloaded. I think the route he is going is more along the lines of moving pickup points or redesigning the arms to remove any compression induced camber.
We really should create a separate thread for this and stop hijacking tony's thread though
Back to your regularly scheduled program.