In reply to kipper12:
> and there was a warning that the nano should not be used for top roping.>
The wording on the website reads more like a recommendation not to use the Nano for top roping (and working routes) rather than a warning that you absolutely shouldn't. Skinny ropes being generally not renowned for their durability, it simply sounds like advice not to prematurely trash your lightweight onsighting/redpointing rope by using it for "workhorse" activities for which a heavier/more durable/less stretchy rope would be more appropriate and for which super-lightness is of less importance. If you use the one rope for everything you'll simply find top roping a more booingy experience - if you know what I mean - and you'll need to replace it sooner.
Whatever you do - top roping or whatever - don't follow Mr Noble's example by wearing a thin robe!