I love my Predator IV. Once set up its deadly from any height out to 35-45 yards depending on arrow speed ect. I've used it for 7 years, on 6 different bows. It takes longer to set up but IMO it's well worth the time and effort. I take 1 look at a deer, decide if it's in range or not and shoot. No guessing yardage, compinsating for tree stand height just concentate on shot placement.Wouldn't hunt with anything else.