Regarding the occurrence of UAS at cruise and what information may have been available on June 1, 2009 refer to the BEA IR3, pages 63 and 64. It would appear to me that Air France provided (distributed) information to their crews regarding the ongoing investigation of six UAS incidents and made some recommendations. The 4th recommendation pointed out that corrections made should be "fabiles" or feeble in nature, meaning delicate or gentle. I assume this recommendation would apply to both roll and pitch corrections.