UPDATE:
Anybody know the link for the LIVE SCOTUS report?
I wouldn't read too much into the fact that those two justices asked favorable questions. It's entirely possible that they were handing the solicitor general softballs because they're pretty much against it but wanted to give him as much room as possible to sweet-talk them into changing their minds.
It can be very hard to fathom what a Supreme Court justice will decide based solely on the questions she or he asks at oral argument.