I have an Aztec 3-18x50 side focus sfp. ?#1. My paralax adjustment has some play in it. If I'm focused to 65 yrds,and that relates pretty close to the markings on the turret, and I go and refocus ,just to double check let's say, the turret must be moved 20-25 yds before I see it go out of focus and the same to return to focus. Is that normal? ?#2. I won this scope earlier this year here on AGN so I don't remember having a receipt, what should I do if it needs looked at and I decide to try and return it for warranty? I went to their website,It's pretty sparse as far as info goes and only states "Lifetime Warranty" BUT sometimes their are conditions that go with that lifetime warranty.