Zastava EAA M88A 9mm pistol back from repair

After being told by a user on my other video, that this slide should lock out on last shot fired (mine didn't in the vids) .... I had it sent to Florida for repair. They replaced the slide lock & magazine, and now you can see, it works fine. When I picked it up from the gun shop, it wasn't locking out, I think it was the amount of cosmoline they had on it. (cosmoline, ... grease that's thick like paraffin wax) Here's the original video & conversation that lead up to me sending it in; http://www.youtube.com/watch?v=dSRIAcC3jwo&NR=1