I would like to hear some thoughts about advantages/disadvantages of each type scope. I have only shot fixed power and it seems the speed adjustable scopes would be the way to go. Are there disadvantages to speed adjustable scopes other than the speed and zoom are the same? If the zoom is changed and then returned to the correct speed setting are the yardages sometime incorrect? Is a good quality fixed power the way to go if I only want to hunt out to 60 yards? Thanks in advance for your opinions.