I googled the subject to get the dates for this year. Only found the 2011 dates.
Does anyone have the schedule for 2012?
Are there spring sprints and fall sprints?
To anyone who has operated them....will you find much activity on them?
WA7BNM has the big ones listed: http://hornucopia.com/contestcal/contestcal.html
The ARRL one in the summer tends to be pretty popular, especially if there are good sporadic-E conditions.