It might work. Achel uses a small amount of debittered chocolate malt for color, which is another option. It doesn't help you get rid of the C80 as much, but it might let you cut the crystal amount down to 3-4%. Anyway, it's an option. Then you can save the rest of the C80 for a stout or porter (yum).
*Member: The HBT Sweaty Fat Guys Cigar Club