Captured stereo convert into Dual Mono

Hi all,
Some of the footage I have to work with is captured as DV with stereo audio tracks.
That's not so nice, because the audio is actual 2 mono channels (2 different mics on interviews)
I know I can switch off the stereo pair in the timeline. But that's tedious. I need to alter everyclip everytime I drop it in the timeline. Also I cannot Unpair the clip in the viewer, while I do need that because I want to lower the level of only one channel during chosing the quotes (because of wind in 1 mic for instance).
So it would be nice to be able to alter the master clips in the browser from stereopair to dual mono.
But I canot figure out how. Can this be done in FCP?
Can this be done in Quicktime.
Any ideas.
thanks
Rienk
NB (I know how to set up dual mono in Log and Capture. It's just that 10 tapes, that someone else did capture in stereo, and I need to work with)

UODATE:
Just opened one of the good clips (captured as DUAL Mono) in Quicktime. Then I see 2 seperate soundtracks. Sondtrack 1 with one ch1 set to MONO and Soundtrack 2 with one ch1 also set to MONO. It that way it differs from the two channels in the one Soundtrack 1 in the clips that were captured as Stereo.
Export the original masterclip from FCP with Export using QT conversion. and set it to export 2 discrete channels will indeed create a file with 2 Mono cannels. And they import as such. "2 Mono" it says.
Reconnecting the master clip to the newly created Dual Mono clip let FCP still think this is a stereoclip (As Andy pointed out, this is indeed not working)
Reconnecting the sequence clips to the newly created Dual Mono clip seems to work. But when I do match frame, then there comes again a stereo-version of the clip in my viewer. (also of course this is because it is looking to the original masterclip that we cannot change in FCP, as we saw in the previous sentence).
So I found a way to create new Dual Mono masterclips, but still I'm not able to alter the originals to the sequence clips.
The building will close here. So have to leave.
But I will try if I can change the settings of the masterclips from within an XML...
OR the solution would be in QT to split the two channels in two soundtracks in Quicktime... But how?
Rienk
Message was edited by: Rienk

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