Here is what I learned from experience. I have a Horton 175 lb pull. I aim where I want to hit, and I can put all in a bull at 35 yards, whether on the ground, on a ladder, or on top of my two story house. Just aim where you want it to hit. Elevation makes no difference. My xbow has a better trigger than most of my rifles. I stalk with it cocked and loaded. I carry a field tip and a target in my truck to unload with. I can put it in the kill zone at 55 yards. Every time. I will hold 10 inches high at 55 yds. Most deer are 10" from top of back to top of head. That is my reference in the field. I don`t normally use it at that range due to lower velocity. I use 125 grain shockwave tips(mechanical). I use a red/green dot scope. Not good in low light. I tried a rifle scope one time, but it wouldn`t sight in, so I put the red/green back on. I lube the arrow track with vaseline, kept in a bowl on the crossbow itself, just under the broadhead. My bow is more accurate with aluminum bolts than with carbon. So is my compound. BTW, I can recock the crossbow in my treelounge. All this info works for me, don`t know about others.