Awesome news for you! I did the same with a porter I brewed back in '03, last fall I tried one and couldn't believe how great it was over time. You'll have to report back the differences the the Notty vs. US-04 cider. On a side note, I made a three gallon batch with Cotes de Blanc last fall, was my least favorite cider yeast I have ever tried. I should have let it sit like you did.