How much does “early release” or”first strike” Increase value of the coin?
Seems thats the 69 or 70 grade are much more important.
“ Stop Buying "First Strike" Coins! This phenomenon of the “First Strike” designation within the coin industry began around 2005. The most frequently promoted First Strike coins are American Gold Eagle, American Silver Eagle, American Platinum Eagle, and the American Gold Buffalo coins. The U.S. Mint has no First Strike program for the minting and distribution of its coins.
The U.S. Mint does not track the order in which it mints coins during their production and does not segregate or specifically identify the first coins minted from a set of dies.
The Mint doesn’t even necessarily ship coins in the order in which they were minted, thereby making it impossible for promoters of First Strike coins to know that the coins being promoted as First Strike are actually the "first coins struck from a new set of dies." So please be informed that this “First Strike” designation is not coming from the mint but from the third-party coin industry trying to make a buck! Marketers have created a perception of value, for an otherwise ordinary coin, based on nothing more than when the U.S. Mint shipped it to the customer!
The only way to stop this madness is to educate the entire community to stop putting credence and value in the term “First Strike”, “First Release”, and “Early Release” We need to stop paying premiums to coin dealers and distributors who are selling designated coins clearly on a false premise that they are in some way more valuable than any of the other coins minted”
https://youtu.be/GpGEM-_mZm8