eCart 4.5.2 Shipping Configured For USPS
I tested the new code, and the shipping price is still too high. 1 item, totalweight 2 oz, shippng cost $12.02.
Based on origin & destination the cost should be no more than $2.50 using USPS First Class.
I've attach a zip file with 3 gif images for you to take a look at as well as the code from my checkout.php file.