Wow! I was in California and Vegas all last week and watched guys split lanes the whole time I was there. I have to be honest, looked a little dangerous to me how they do it. I don't mind doing it every now and then but I would rather just split and go VS riding down the middle of the 405 in bumper to bumper traffic with impatient drivers constantly trying to cut over to get one more space ahead. On a side note every biker except one was in full gear out there even with the heat...And when I say full gear I mean 90% in leather race suites, boots, gloves, etc.