In reply to TobyA:
I'm not saying it is cheating but I can see why purists will say it is cheating, in a sense it sort of takes part of the danger out of it, i.e. right, can I hang on one handed and place a screw or do I push on until I can?
I would think routes are graded assuming you do not clip your axes, whether you weight them or not?
Also I don't think your comparison to the nut and freind is entirely the same, as to place the first bit of gear you need to stop, get it off you harness, fiddle it in, take off the quickdraw and clip it. Whereas to clip your axe you just place it, and clip the quickdraw into the bottom, also you don't use the original friend for very bit of ascent you make, whereas you do with your axes.
A very cloudy subject I feel!