hmm.. was about to ask the same question just now as a post just put up a few days... but I dunno if it slightly different..so putting up a new post. Pardon.. a thousand apologies.

I'm working on scans of very old pachment, cleaning it up.  I use the clone tool to clone over spots.. but at times..esp if it is a huge area and a new layer from  the old layer won't work..I enlarge the brush using the slider tool.. and clone.

At times..the area that I need to use the clone tool on is a  large. area. I use a large brush. But I've noticed that the cloned spots are fuzzy. There is a slight difference on the parchment paper. Not noticeable when printed..but for clarity and factual sake..i need to keep it the same.

Question.. how do brushes work? Say I choose fuzzy 12.. and use the slider to increase the brush size to 200. What changes? Just the size of the brush, and or not the fuzziness size?
If I use a 200 fuzzy brush.. what is the difference between that brush and the increased 12 brush resized to 12?

I use the fuzzy brushes to 'melt' the clone section.

Is there a way to increase the brush size and not the fuzzy area? Do I need to go back to photoshop school..i'll happily do that,.

Any help will be so gratefully received. Thanks a gazillion ..

Cheers