I will be a new sub in the washington dc metro area and would like to know how subs are called in. I have signed up for montgomery county, prince george's county, arlington, alexandria, loudon and fairfax counties. I would like to know are subs called in the same day like 6 in the morning or are they given some heads up like atleast 12 hours before the next day when subs are needed? Does anyone have any stories from their sub experience at any one of the counties I listed? This information is much appreciated. Thanks to anyone that contributes.