Uhh.... the scrub wheel.
Well... here's some links to past discussions in the ProControl section of the DUC to give you a little history on the topic.
http://www.digidesign.com/ubb/Forum29/HTML/000003.html
http://www.digidesign.com/ubb/Forum29/HTML/000025.html
http://www.digidesign.com/ubb/Forum29/HTML/000027.html
http://www.digidesign.com/ubb/Forum29/HTML/000087.html
Be outspoken or it won't get done. Persist. Be unrelenting. Be a pest.
later, j mcd