Serious flaw with shipping calculations
We offer two Real Time (RT) shipping options. USPS and UPS. When the USPS website goes down, the cart reverts to the other available RT option, UPS which is often twice as costly for the customer. The system should revert to the back-up table for USPS. As explained by Tech Support, this forces us to drop UPS from the shipping options and loose the extra service of overnignt and 2nd day shipping. We discovered this serious flaw because USPS website have had significat downtime lately. As much as I would hate to switch carts, this may just force our hand.