No prob, just want to make sure you get some assistance. I am going to test with my library now, but the last time I tried it it wouldn't work, which is why I started using the fetch annotations method along with the template that I pointed you to in the other post. I also backup my mbp files to a backup drive. But I only save the versions from the kindle. I only use the kindle app to update the amazon versions (for those that I purchased from Amazon). But I get my books from many sources so the Amazon method is not helpful for me either. But the best part I like about the fetch annotation method is it gives me quick access to the bookmark information in the Calibre library.
Also, after I have read the book and I know I will not be adding any more notes to it, I use Calibre to re-convert it to mobi and add the summary info to the first page of the book, so that gives me a more permanent lookup for the data also. A little excessive, I know but I think I have a little OCD in me.