Photoshop :: Which Sound File Format (Speech) For CS6 Video

i edit video tutorials in Photoshop CS6. The voice is on its own mono audio track. The voice track will be cut multiple times within Photoshop to adapt to the ongoings in the video. After editing the audio track in Audacity (or sometimes Audition) i wonder which file format i should use for the audio – so that i can import it and easily cut it in Photoshop CS6.
 
I used MP3 192 kBit, but it seems that sometimes i cannot exactly mark the millisecond where i want to cut. The marker bar jumps around and I get uncontrollable results. Of course this can be a general cache problem, but i wonder if there is a certain audio file format that's best to edit (file can be uncompressed and large). I do make long pauses in speech in order to get more easily cuttable tracks.
 
If i use MP3, is VBR more difficult to edit? Should it be another file format altogether? Photoshop CS6 imports these audio file formats:
 
AAC, M2A, M4A, MP2, MP3, WMA, WM,
 
some of which can't be written with the audio softwares i use.