We don't do Thursday because that's when Apple Cabin is open, we usually chose a weekend day when we have to make up a practice so we can catch the guys/girls who cant do weekdays. We also try to chose the best day according to the weather forecast and try to look at what other local tracks are doing that day, if there is 5 other close tracks running one day we try to choose another day if possible.Also when we have to make up practices we have to figure out another day when everyone (the staff) can be there to open up.Sunday's usually work out the best all things considered.