I have had my best luck hunting out of a newly placed stand. Every time you use a stand you risk tipping off the deer either by scent, sound or sight. My best tip is to be very concerned with wind direction. I never use a stand if the location allows my scent to drift towards where the deer are coming from. I always try to have 2 or more stands set up and I determine which i'll use with the wind as one of the factors. If all factors are equal I try to alternate sitting locations just so I don't get patterned.