Quote Originally Posted by mikestaps View Post
After some extensive testing I have found the the Optional Insurance Mod DOES in fact play nice with this USPS module.
check it out here (it automatically tuns off if you select UPS, but works for USPS...)
The optional ins. mod is an order total mod and is independent of the USPS shipping module.
Now back to the volume checking "hack" of this USPS module...
You'll find that your method of implementation will require more 'hacks' of core zen-cart files. Thats why I re-tasked the weight field.

It's not just a matter of getting the field in the database and having it editable in the admin section. Now you either have to edit the shipping and/or order class to retrieve the volume field for the products array. Or you have to do another database lookup in the shipping module code to retrieve and add up the product volumes.

Once I've improved the framework for my module I will start looking at writing an improved shipping class that can properly handle volumes and drop shipping. I'm not at that stage yet...