A new technique of using Clown Shoe rim strip on Marge Lite rims for a tubeless setup came up on a recent stomp. Apparently the added width of the strip helps seal. Found more here: http://forums.mtbr.com/fat-bikes/tub...rk-895718.html

Some say it works perfect, others say an extra layer of tape/strip is needed to prevent bulging. I'm going this route for my first attempt at tubeless and will report back.