[mark '87 930]

How 'damaged' are compressor blades required to be for them to be useless.. and not provide anything supplying boost?
My compressor wheel (cold side) has a really small piece of the corner (maybe 1-2 square mm) of one of the blades cracked off or missing... Is this significant?

I'd take a picture, but my camera doesn't provide clear enough pictures this close up.