The Dean: Thank you for the advice.
VFE: I work five days a week. Five slots a day. 0900-1030, 1030-1200, 1200-1330, 1330-1500, 1500-1630. During the heart of winter the last slot does tend to be a short one. If I'm night flying (which I avoid due to the hassle factor) I fly until 1900 ish. When the weather is bad I do give my students a little bit of groundschool (navigation techniques,etc).