The suggestions you have gotten are telling you to keep the scope as close to the barrel as possible. There are reasons for this. once you get the combination that does this for you, you gotta practice, practice, practice until when you mount the gun to your shoulder you are automatically looking through the scope and are on your target. This is an accquired trait. It comes easy for some, others have to work for it. Work at it. You can't be fussing around trying to find your target through a scope at crunch time. Make sure your eye relief is comfortable for your shooting form and practice every chance you get.