I've got a question on the timing of when to stack round bales under a tarp. Is it OK to stack round bales in a pyramid and cover them with a tarp directly after baling (same day/next day)? Assuming dry hay of course. Or do the bales need to "sweat" for a few days no matter how dry the hay is before baling? The reason I ask is because it seems that in the recent years we haven't had stretches of nice weather for bales to sit outside and sweat. There is always rain 2-3 days after baling. If we can get away with stacking under a tarp right away this will avoid the hay getting rained on. I'm relatively new to making round bales but I'm very familiar with making small squares and I'm a little confused on why people say round bales have to sweat but we've always stacked square bales in the barn the same day without and issue? Is the sweating only necessary if the round bales are made when the hay is too wet?