Silver Mtn is the one I use as well. I still have over half bottle left that was purchased 3 years ago so yeah it doesn't take much.
I normally start seeing pollen sacs form around 14-20 days into flowering. This last round I noticed it took right around 30-33 days for sacs to open and the nanners inside dangling. Those are the nanners stuffed with pollen and ready for use. I've forced some sacs open before and its a toss up if they have pollen or not. If the sacs are hard the nanners inside are not ready.
This is what it looks like when the sacs open and show casing the nanners (faint black arrow in pic)
Just above the black arrow in the pic you can see sacs that are beginning to open. This pic was taken at 33 days of flower schedule which is why suggested to go into flower 7-10 days before recipients for photos and using clones for pollen.
I normally start seeing pollen sacs form around 14-20 days into flowering. This last round I noticed it took right around 30-33 days for sacs to open and the nanners inside dangling. Those are the nanners stuffed with pollen and ready for use. I've forced some sacs open before and its a toss up if they have pollen or not. If the sacs are hard the nanners inside are not ready.
This is what it looks like when the sacs open and show casing the nanners (faint black arrow in pic)
Just above the black arrow in the pic you can see sacs that are beginning to open. This pic was taken at 33 days of flower schedule which is why suggested to go into flower 7-10 days before recipients for photos and using clones for pollen.