Tucson is a CRJ200 base and they are doing most of thier hiring into the Brasilia. If you have prior 121-experience and you were hired directly into the jet, it would probably take about a year to get Tucson. Most people that transition to the jet after a year in the Brasilia (when the seat-lock expires) don't have a problem getting Tucson. On the captain side, however, Tucson is very senior. The most junior captain was hired over 5 years ago.