Started buying scopes with Ao because of using a pard 007, I found best thing to do for that (for foxing etc) is to focus on an object say 150m away at max magnification. Then mark it and leave it there, at lower mag close shots are fine, at further distance it can't be improved any more so it's a set and forget way that gets rid of "fiddle time" that you don't have. Certainly works well on a 3-9 or 4-12 mag of scope. Tried a side focus scope and it was good but it encouraged fiddling all the time to get perfection, for rabbits maybe it would be better as they tend to stand still longer. I put an alpex 4k on my 243 and had a deer in the woods but after changed it for a hawke vantage 4x32, no mag or Ao adjustments. No fiddle factor. Of course I will use the 4k for night shooting or out in the open but for in the woods super simple I find best. The little 4x32 is a belter for the money!! On the alpex however I think side focus would be a better thing as it's quite focus fussy at the higher magnification.....