I have never received priority boarding on any KL or AF flights within Europe. Come to think about it, as a Sky Team Elite Plus I have been upgraded only once by AF due to a severely overbooked flight. I have also had problems gaining access to different airline lounges. A few times I had to pull out the Sky Team printouts that spelled out the policy. After a few calls to the supervisors I was finally given access. Of course that is for a different post.