It can't be done with the current 3D mesh. The top cowl is a nightmare of stretch. In one place a small portion is transposed higher on the cowl.
It's why you don't see ANY checkerboard cowls on Jugs. The curved point of the white in the top of the cowl on your example is impossible to do....well..short of suckin on a gunbarrel...and even then.
With the new 3D mesh it's doable, along with all those checkerboard cowls that would be great to do.
Gotta wait till the 3D mesh is updated.
Sweet lookin Jug tho.