As I can't see my attachment yet, I've managed to upload the full snapshots here.
http://www.raikmo.demon.co.uk/scharfis_brain.bmp
http://www.raikmo.demon.co.uk/wilbert.bmp
If you zoom 300% in photoshop and examine the yellow text you'll know what I meant in my earlier post.
Scharfis method produces chroma that doesn't fill the full text characters, i.e. less by 1 pixel. Whilst Wilbert's method produces bleeding by 1 pixel.