Insulation batting interference?

[jfg1891]

Hi, I'm using ACA 2008.

I have a wall type that intersects with a column. I want to "trim" the wall part that is over the columnn... I added a subtractive interference condition... it sort of works but it wont clean up the insulation. The insulation is part of the wall style as a line with linetype "batting"

Any help would be appreciated. I've attached the file in question in case it would help.

Thanks

[jfg1891]

I was thinking about it... it would probably help if I attached the columns too...

[steve.yarnall]

jfg1891....I believe the subsequent attached column dwg needs another xref called 0903S-COLS-NV01-03.dwg......