I usually have all of my stands up way before the season starts. But, there have been a few times due to stand location during the season I have moved a stand and hunted it the same day. Took a deer out of it that day. Usually I would give it at least a few days though and try and do it either just before a rain or in the rain. This will eliminate your scent rather quickly.
If I don't hunt the stand the day I hang it, then I like to wait at least a week. But like the previous post, most of my stands are already hung for this year. Better to allow time for the deer in the area to get back to their routine if I spooked them.
If you want to properly preserve velvet antlers, you will have to inject & brush them with formaldehyde or some of the new less toxic chemicals (4 in 1 solution works great as does Knobloch's antler in velvet tan) as its easier to use however, both will work.
First, using rubber gloves take a razor blade and make small incisions at the tips of all points about 1/8". Next hang the antlers upside down, allowing the blood to drain. Starting at the bases inject the solution into the...