Great to hear your pool is clearing. After it looking so green during the conversion, it is hard to believe it will turn clear again, isn't it?

I would wait a few more days before adding cya. The container will tell you how much to add per volume to get to a desired level. I would initially shoot for 25-30. You can always add more later if you need to, but if you add too much now, the only way to lower it is to do a partial drain. Can't comment on the price from Leslie's - especially not knowing how big the bucket is. I don't remember how much I paid for my cya a month ago. Maybe somebody who recently bought it can comment on that question for you. You can put it in an old sock, but what I do is just dump it in the skimmer and let it dissolve in the filter. Your choice. Both ways are fine. The container may say to broadcast it across the pool, but don't do that because it will just lay on the pool floor for days waiting to dissolve.

Yes to shocking a couple more days. Then, after your conversion is done, you'll need to change your sand.

You're in the home stretch now! Glad we could help. You will not be sorry that you switched to chlorine from 'baquagoop!'