I like to breed our himi dwarfs into blacks from shaded lines or himi, not agouti lines. Why? You don't want to end up with "shaded agouti" which are none showable, nor worth breeding back into. We like to breed our shaded dwarfs (smoke pearl and sia sable) to blacks to darken nail color and point color.
Just learned a lesson this winter. Got a new REW buck. Top of pedigree all REW (red-eye-white rabbit) Bottom of pedigree was REW and smoke pearl and himi. I "assumed" it was a "shaded REW" and breed to sia sable and seal does. WRONG assumption, he was hiding agouti. 4 generations back we had otter and agouti on top of pedigree. Had 4 litters of non showable buns. We had shaded agouti babies. shaded chin, shaded squirrel and smoke pearl agouti, all went out as pets.
Use your pedigree as a blueprint to determine how you breed.