30fps Output Frame Rate from Deinterlacer II?

I've been using the Deinterlacer II to deinterlace my 1080i60 video stream but I don't want the 1080p60 frame rate that it outputs. I see that the old Deinterlacer has the option to output a 1080p30 stream so I can probably move backwards to this core. Does anyone know how the performance and image quality compare between the Deinterlacer and the Deinterlacer II? Is this a huge step backwards? Is there any way to get the Deinterlacer II to output a 1080p30 video stream?