Erin,
Where does Koda mat?
Samira has a cotton coat too. We have been at our witts end also!! She gets mats on her belly and her lower sides. I took the clippers to her and cut this area short...about 2 in long. Then left her back and sides long so she looks like she still has a long coat.
We just did it on Monday... and it seems better.
She still get's brushed every day. I use Ice on Ice or GloCoat or Ruffout...all seem to work about the same.
Good luck!!!
Lorene