USPS GA transit time for packages under 15.99oz remain the same as FCP at 2 to 5 days. You should not see any difference in delivery times.
USPS GA transit time for packages 1lb to 70lb should see a little better delivery times as they now fall under the 2 to 5 days time frame instead of being 2 to 8 days. Pricing is suppose to be 1.4% lower compared to these predecessor offerings, according to the Postal Service.
Please Note: Besides establishing how GA is performing, another thing @Roxy is trying to establish is the whether or not Amazon Buy Shipping estimated delivery dates are accurate or not in comparison to what is provided by other sites like USPS, Pirate Ship, ShipStation, etc. and for the ability to set better more accurate shipping transit times in the shipping templates. In the recent past, we (Roxy and Marbles) have documented fluctuations (inconsistencies) in Amazon Buy Shipping estimated delivery dates. These inconsistencies can affect how one sets up their shipping template transit times. The goal here is to understand what Amazon Buying Shipping delivery estimate is doing so that better shipping transit times can be set which should enhance the customer buying experience (customer possibly gets a better estimated time and thus the listing having a higher ranking within available offers).
From what we have seen recently … when it comes to USPS estimates