I too picked up 2 hot pink C lines from MSt. They are a completley different disc from the S lines. They are more HSS with more LSS than any other S lines ive thrown. It has a high shoulder and flat top. The Russian CFR C lines were more stable than the S lines, but these C lines are like a different disc.
Very little turn with thrown flat, and dont flip from hyzer like the S lines. Almost like a new champ teebird