When evading Russian IR missiles I fly very unpredictably and push the aircraft to the edge of it's evelope before stalling but knowing the launchers position to begin with is very important because missles you can't see are usually the ones that kill you. If i get a launch behined 3/9 I roll and dive before pulling back up this can increase the chance of the missles running out of steam before it can catch up and hit you. I think that you need to be familiar with what the aircraft can do before you get these manuvers right i.e. stall envelope max speed and pull up. But one things for sure, practice practice practice