The cooler weather must have mine pumped up. I had one or two shed their velvet a few days ago and now it seems like a handful more have gotten pumped up and went and hooked theirs off. From what I’ve seen in past years it’s always oct 15 when they shed. Where I hunt the rut is mid to late January into February. Like you said though in October right after they shed their velvet they get kinda pumped up for a few days especially when some cooler air moves in. Knowing my luck all the bucks on my place are already aggressive to each other so they will shed their velvet and start fighting and knock their damn horns off before the season comes in.