Minify is still happening in spite of pipeline modification

I am struggling with an issue for about a day now. We are using the Cassette.Less package to bundle a less file. The problem I'm seeing is that when I bundle this way..

```
public void Configure(BundleCollection configurable)
{
configurable.Add("content/less/site.less", RemovePipeline);
}

void RemovePipeline(StylesheetBundle b)
{
var x = b.Pipeline.IndexOf();
if (b.Pipeline.IndexOf() > 0)
b.Pipeline.RemoveAt(x);

var a = b.Pipeline.IndexOf();
if (b.Pipeline.IndexOf() > 0)
b.Pipeline.RemoveAt(a);
}
```

The it still comes out minified. Seems there is something else that is performing minification on the resources outside of the pipeline for the bundle. When debug=true, this does not happen, and the file is rendered without minification.