You can capture at 60p. You should probably use Media Express to do so. The variable rate flagging will be lost, I believe. However you could shoot at 60 and crank in post.
I believe adobe has said they don’t intend to add support for third party in on location. The problem is on location doesn’t have any hooks for capture cards… Only dv/hdv. I’ve found that scopebox is a handy utility for onset waveform and record.