The practice of motorcycle lane-splitting is legal in California but it's a grey area here in Texas. There are 2 bills in front of the legislature right now that could make lane-splitting legal in Texas as long as traffic is moving slow. Stearns says if it's made legal, yes, he will lane-split.
The box for Known Traveler number isn't really clear on the format to enter... when I look at my GE status on the GOES website, I see a 9-digit number only. Entering these 9 digits produces an error on my profile page when I submit. Below the box they give an example of AX123456789US....
A Known Traveler Number is for PreCheck. You can get into PreCheck via a number of programs, including Nexus. For Nexus people, put your PASSID (from the back of your card) into the Known Traveler Number field. A redress number is like an override if your name is on the Do Not Fly.