Suppose you have
6B pencil from some reputed brand. You can create various degrees of shades using it. For example, if you use less pressure and hold it at a very low angle (slanted), it will give lighter shades, and if you use normal pressure, it will give darker values.
Now, I want to know if creating lighter shades from a darker pencil increases its chances of more smudging and smearing (or maybe even blurring).
Personally I feel yes, and my theory is that when we use less pressure, the graphite is not properly 'inserted' into paper texture. But when we use more pressure, it is more attached to the paper. So that's why I feel so.
But that's only my speculation and personal observation from a few times. I have tested it and it works especially when I have to create a blur effect. I don't know for sure. I could be wrong too.
Something similar has been briefly mentioned here:
A note, pencils in the B range are softer and will smudge more and more obviously, so be extra careful with them. 4H and higher shouldn't smear very much at all, but they give you much lighter values.
But I want to know in detail if creating lighter shades from darker (soft) pencils actually increases the chance of getting it smudged and smeared?
PS: In case it helps to know why I want an answer: I want to know because I can get lighter shades from a lighter grade like
3B pencil instead of using a
6B with less pressure. So that will decrease the chances of smudging. Both when we are drawing and after the drawing is done and we review it after years!