i don't have experience with the bag to BBB conversion, but i am running my CYA at 60-80PPM as per SWG common practice it seems..i've read some of the stuff re: CYA and chlorine but overall, i see using stabilizer as more positives than negatives.

put it this way, you go to an SWG, you're going to have to use CYA anyway, right? so.....

just my opinion.