It depends on how many eyes are watching you. If only one deer is coming your way, I tend to plan my draw when he/she is walking behind a tree or heavy cover or when their head is down or looking back. If more than one deer is present, I judge all the deer to determine how skitish they are and estimate when all/most are not watching in my direction.

I'm usually comfortable holding my draw for up to 45-60 seconds if needed. I actually practice this late summer just before opeing day. Heck, it's late summer and I should incorporate this into my training this weekend. Only 3 weeks to go!!!