I'm extending the catalog_product_option_type_value database. I created my own table, my_catalog_product_option_type_value and it has a reference to the option_type_id. I have that working, and my class working but I added a table column to the custom options grid and I can't figure out how to get my custom field value.

When I click the 'Save and Continue Button', I want to be able to get the ID of the newly created or existing option_type_id and then use that id and 'My Value' to insert or update a record into my my_catalog_product_option_type_value table. I created an observer that picks up the catalog_product_prepare_save event. That is working but it only returns a product and it's options. I can't get my value. I found this code in the ProductController class:
if (isset($productData['options']) && !$product->getOptionsReadonly()) {
$product->setProductOptions($productData['options']);
}
So, I though i'd be able to do something like
$productData['options']['my_value']
but that doesn't work because the post data is [options][id][values][id][my_value]. I don't know how i'd get the id of these options. So, I'm a little stuck and hoping someone can point me in the right direction