No mate, I tried fooling about with seperate mappings on certain faces to get rid of the blurred sections but gave it away as it was too much stuffing around for little gain.
There is nothing mysterious or hard to get that lip. I do put in a lot of verts to create a more ragged, natural looking lip and this also allows for more adjustment whether it be groups of verts or individual ones.
Just a couple of other things people may or may not be aware of ----->
I use a seperate planar mapping for the lips which has been rotated 90 degrees....

- bl.JPG (20.6 KiB) Viewed 4893 times
This is only added to the multiples ----->

- bl4.JPG (28.98 KiB) Viewed 4893 times
Also when all the mappings are done you get a visible edge line between the 2 lip extrusions ----->

- bl1.JPG (164.89 KiB) Viewed 4893 times
I found if you select that ring of edges and set the sharpness to 4, the visible line magically disappears ----->

- bl2.JPG (272.38 KiB) Viewed 4893 times

- bl3.JPG (204.94 KiB) Viewed 4893 times
Most are probably aware of these steps but in case anybody wasn't sure, there you go
T