Well I just thought I'd let everyone know that I talked to Fred Settles at Muzzy. Fred is the Coo Of Muzzy. I asked Him about the inferior products being sold to Wally world. He gave me his personal gaurentee that they are the exact same quality as the ones sold at the proshops. I also asked Him about the model number being different from the pro shop to Wally world. His reply was that the 3-pack at walmart does not have practice blades. That is how they get their price point lower to be able to sell at Wally world. He also stated if any one wanted to talk to him about it he will gladly speak to them. His E-mail is [email protected] and their phone number is (770)387-9300 Hope this helps.