tr,

I agree with the things you are saying. I haven't had the experience with as many USPS transactions as you, but it is over 2000 in the last 3 years.

If Ubercart is simply telling us what the response from the USPS server, I can't ask more. What I do expect from Ubercart is the correct shipping charges as it comes from the USPS server plus the appropriate markup. For my site, the Parcel Post quote is obviously wrong. I think this is a bug.

The idea of a checkbox to turn off transit times is a good one. It would also be nice to be able to enter my own comments beside each shipping type selected. This could include suggested transit times, to discourage nearby customers from spending too much on shipping, or whatever else I might wish.

Another idea is the option to have a bit higher markup to ship via express mail. If I have to bust my butt to get something out to a customer outside my regular shipping cycle, it would be nice to have them pay for a bit of butt repair.

I'm working to go to a server with PHP5. I hope that cares for the simplexml errors. I don't imagine it will fix the incorrect parcel post quotes.