Do a search in the Tools ... Developers Tool Kit ... for the word:
weight
you will see an overwhelming 450+ places that this word is used ...
The good news is, you don't need to customize the code in that many places ...
The bad news is, you need to figure out which places apply to what you are trying to do ...
I don't know if you want to control it at the Products level or Products Attributes level ...
Both use weight, but you did not specify how your Products are set up ...
Doing the search on the Developers Tool Kit can give you an idea of places to check to see if you need to address the new field you are making in those same areas of the code ...




