i use the bushnell arc series. they compensate for angle and drop. Tree stand angles make an impact on yardage, not a great impact, but still some. Nikon archers choice is nice too, but restricts you to 100 yards. My bushnell arc can range to 1000 yards, but if you have ever tried to range something at 1000 yards, its nearly impossible. Plus.. I would say my max effective range with a gun is about 250 yards anyway. Its nearly impossible to even think of shooting something that far where I hunt in PA. I like the up close and personal stuff anyway. So although I havent necessarily answered your question... when you are looking for models you can take into account my own experiences. Honestly, the only time I have mine is when I hang a stand. I use landmarks.. trees, bushes, rocks, etc. to mark off yardage. Once I do that, I make a little drawing til I remember it and thats all the more I use my range finder. By sept. its back in my drawer.