I'm thinking just keep applying the CS for a few more days to areas on your treated branches where you're not yet seeing pollen sacks. Then stop and watch the magic happen. It will seem like every day you're spotting more and more pollen sacks. Then in the morning start looking at the leaves underneath your mature pollen sacks. You'll start to find little bits of fallen pollen on the leaves. When you see that you'll be ready to start collecting pollen and making seeds. As I had recommended earlier trim away (when the sacks are mature) the leaves under the pollen sacks to facilitate the collection of pollen.
One tip when pollinating. Be very gentle with the brush touching the pistils. What I've been doing lately is dipping the small paintbrush tip into the pollen, holding it over the bud to be pollinated and gently tapping it which knocks the pollen onto the bud. Do not over-pollinate a bud. You might think more is better but in nature not every single pistil is pollinated. If you pollinate too many pistils you'll end up with a lot of underdeveloped, white, or tiny seeds. I'm thinking the lone bud isn't able to provide enough of everything the seed needs to mature fully especially space. They need some space. I can't wait to see your seeds when they start to form. Never fails to be exciting.
One tip when pollinating. Be very gentle with the brush touching the pistils. What I've been doing lately is dipping the small paintbrush tip into the pollen, holding it over the bud to be pollinated and gently tapping it which knocks the pollen onto the bud. Do not over-pollinate a bud. You might think more is better but in nature not every single pistil is pollinated. If you pollinate too many pistils you'll end up with a lot of underdeveloped, white, or tiny seeds. I'm thinking the lone bud isn't able to provide enough of everything the seed needs to mature fully especially space. They need some space. I can't wait to see your seeds when they start to form. Never fails to be exciting.