The manufacturer specs don't really say the PC12 is outperformed by the VTF3 and LFM. If you have enough information about the subs, you can make an educated guess, but, to be sure, you need third party measurements. There are some relevant measurements in this case, between the PB12 NSD and the LFM-1 EX
here, where the SVS sub does gets outperformed by the Outlaw in many respects but not all respects. I think the VTF3 will have an even greater advantage, especially in the deep bass. I wouldn't wait for too long to get a VTF3, I don't think the holiday sale will last much longer after christmas.