Lane split all the time here in Europe. Won't zip past a traffic jam at a +/- 50 km/hr speed difference like some do :huh but at a slower pace, or at traffic lights with a minor queue, I do it all the time. I always keep the bike in 1st, and make sure I make a good clean getaway at the green though, sometimes someone won't like you filtering to the front (most times they were startled to see a bike pull up in front of them when they were at the front row) and they will try to keep up. A little throttle and I'm a few lengths ahead. General EUR attitude (cagers and bikers) = Why keep a carspace occupied at the middle with a motorcycle, when you can take off from the front alot faster then most cars and free up some space in the middle/back of the queue?