If you starting seeing "**-too_small" it means that the indexing is being learned, and not using your props.conf or transforms.conf settings. So, a couple things:
First, you shouldn't replace any of the documents/configuration files within the Default folder. Use either the Apps folder or the Local folder for your custom config. Second, there are a few bugs in the past (true with IIS at some point) that no matter how you specify the sourcetype, it will only grab the name, and learn the rest automatically. So that's something that needs to be fixed on the software. Third, when you re-add/re-index, make sure you clear the learned configurations. This is located on the Apps folder under learned.
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