In July of 2023 USPS told us a big lie about it's new Ground Advantage mail service. They said that First Class and other shipping names were being combined and called Ground Advantage. They said nothing is changing except for the name. That is the lie. First Class mail always shipped in most cases by AIR. Now under Ground Advantage as the name implies, shipments will be sent by ground in trucks. This has caused delivery times to double. Packages I used to get from the West Coast would get to me in 3-4 Days Max. Now it takes 7 to 9 Days and in some cases 10 days and more.
The Chart shown was downloaded from USPS.com. It shows my general area in Florida and the delivery times I can expect for Ground Advantage shipments. Those times are not even close to the real world shipping times. Add on at least two days to all those times and a lot of the time double those numbers. I also find that tracking updates are sometimes non existent until the item is in my area. I deal with a lot of small parts to do repairs on customer items. Almost all ship Ground advantage from the distributors. Most of the Distributors are in California. That means a very slow turn around for customer items that now sit in my shop for 7-10 days waiting on parts. The parts are inexpensive, so there is no way to justify Priority Shipping.