I personaly put my indicators on, pull out of racing line and tap the break lightly and repedativly as to be easily seen. That's pretty much what I do for every blue flag. To me it would seem annoying having a hardcore race then having some n00b / slower person / someone that started later stuck in front of you. Its no inconvienance to me to pull over, as I'm not going for 1st place etc. Funny thing is, only one person has said "Thanks" to me lol I do understand the official blue flag rules are differnat though.