Mint striking technology is so advanced today that proofs or business strikes virtually ALL coins are 70, 69, or 68 except maybe on the 5-ouncers where you see some 66's or 67's. Congrats on the coins !
I was hesitant because I had submitted 2 other sets for friends of mine and they both came back with a type 1 69 and a 70 on the type 2.
These are the best the Mint has to offer. New minting tech and old school artistry. BEAUTIFUL coins. Now if they can only get away from CAD (LOONEY) tunes with new designs.