So, you are saying that you leave at minimal, a car's length in front and behind you when changing lanes between cars when you are driving? You also are saying that you leave over 5 feet in front and behind you on your bike? Man, we rode in CA a few times and the lane splitting takes some getting used to, but guys like Casper would shit their pants if they did so... It was TIGHT! And that wasn't a track! Cagers hit their brakes when a full semi behind other cars. The OP could have easily been unable to judge correctly... I mean, there are ALWAYS two sides to every story. Hmmm.... I sense a discrepancy here http://www.ohio-riders.com/showthread.php?t=55308