To 301 or not (Panda'd)

Traffic dropped 40% after Panda, we think because of spidered stuff (although we have loads of custom content too - it's an industry web directory with news). If we 301 the scraped sections to a new domain to which we would link do you think the penalty would lift or because we're trying to pass its rank would we still be penalised?

Apols that this is a bit lacking in detail but the moderation system hates me.