Struggling to find a way to emphasize buffs (have them a larger icon) on target frame that are cast by the target, while still showing buffs cast by other creatures on that target frame.

I have set up 2 different groups:
group 1: shows buffs on target cast by target only - this is a larger icon
group 2: shows buffs on target cast by everyone - smaller icon
The problem is I now see buffs cast by target on the target in both groups, and can't find a way to exclude it from the second group.

Hope this makes sense... is there any way to do this using Raven? What am I missing?
Thanks!

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Any way to do this? Basically want to have separate size and/or location for buffs by the target on the target, but still show other buffs on the target from other sources. Seems like I should be able to do that but I cannot find a way. Do you know da wae?