Castor broke through in 1995 just like fellow Champaign-Urbana, IL, artwork rockers Hum made their major-label debut. While Hum liked more reputation by keeping marginally inside the bounds of simple rock and roll, Castor pressed the limitations of roomy, experimental music on the self-titled debut, getting a tour using the Guarantee Ring and Substance Red that place the band in the indie map. Castor performed its last present in January 1998. Monitoring Sounds Alone premiered posthumously on Dirt. Vocalist/guitarist Jeff Garber (Morning hours Becomes Electric powered) and bassist Derek Niedringhaus became a member of National Skyline.