I agree, 8 weeks is best with colonies because eggs are missed easily. This makes sure you get all of them.
Check for eggs on every dip. I wouldn't bother removing the frags from the plugs because it will stress them out more and your already going to be watching them weekly to kill them anyways.
I think rushing a separate qt is a bad idea. They are easier to get rid of by just dipping and putting back in your tank. I think most losses come from using the wrong dip, dipping for too long, and getting freaked out in general causes peoplease to over do dips and such. If you get aefw take it slow they will not wipe a tank out in days. If your infested to the point of all colonies in decline with tons off eggs, I would focus on basting and egg scraping for a few weeks because weekly dips could really stress the acros more. This and one quick dip to knock the population back can help. Getting the acro colonies healthy again will make them more able to handle any stress from future dips or attacks from worms.
Since I see this question posted often, I will say that birdsnest, stylophora, pocculipora, Montipora, ect... do not need to be dipped. Seems newer reefers get confused with anything ending with pora or branches.
