Hi,
I have a store which sells tea. The more you buy the lower the price. So I have an attribute setup which is for the weight.
A sample would be like this:

4oz - 5.99
8oz - 10.99
16oz - 20.00

In using the Canada Post shipping module, it asks me to enter a weight of the product. How can I get around this because my weight is determined by the attribute?

So if I put a 16 oz order in my cart, the shipping is still only based on 4oz.

Is there anyway to just turn these extra features of CP off and have it work like it used to in the old version?
Or are these updates mandatory because of the CP system changes?

Any suggestions for what module I can use in replacement of CP in case it comes to that?

Thank you