I will attempt to break the record for most ascents up this mountain in 3 days. The hiking will be between 6/25/11 and 6/27/11. I will be taking the avalanche gulch route on the southwest side of the mountain.
Good luck with your ambitious climbs Eric
This link might interest you. Shasta has been climbed (and skied) six times in a 24 hour period of time http://pweb.jps.net/~prichins/shastarw.htm