I am using 1.3.9g version. It has not been updated recently. I have the USPS module add on for shipping.

I am trying to figure out the proper entry for a product listing weight of one ounce, so that the USPS Rate calculator will figure the first class postage correctly (both domestic and International) I have searched all the forums and the info I have found and tried, does not work. I have removed and/or changed any tare weights etc that might effect it also. I have tried 0.1, 0.01, 1 and some others and they seem to have no effect at all

As part of this question I hope someone might know how I can make ALL my items have the STANDARD weight of 1 ounce each as they are all the same. Is there some way to make this a standard when setting up a new product?

Thank You!
New and learning fast!