Share 'worlds pools'

I figured you guys might be more gentle than the pdga forums about worlds. My kid and I are going and I still have not seen a break of the A and B pools for Open players? Will it be by ratings as in the past? Alphabetically? Are there plans to announce this before we get there or will it be at registration? I know the first day for Open is on tee times so not a big deal but with the two of us sh…