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There's also the option of .3 micron lapping film.

Almost posted that but it's discontinued

And I don't know why I didn't think about it but I could definitely send you a chunk of mine as well. How selfish of me. Just let me know.

191349
If this is the one you're talking about I'm about 99% sure it's .3. there's a chance I'm wrong though. Did a quick search everywhere and its either discontinued or out of stock. Sorry brother.