+1 on what herdbull says....don't bother trying to use it on game in sight. too much movement not enough time, and you'll miss a good opportunity when you should be looking for a shot and not ranging.
On new stands when you walk in and set up, range likely trees in a circular fashion around your stand where you maximum range is. You can kinda connect the dots between trees and if a deer walks in and presents a shot then you'll know.
In general, if you bowhunt enough and get good enough at setups, most of your shots will be in the 10-25 yard range. About 10 yards from a trail is good....maybe 15. That's a high percentage shot.....beyond 25 yards things get kinda dicey......not that it cant be done, but unseen twigs, deer movement after the shot, etc...can really make for a long tracking day. I use a one pin setup it's much less confusing and quicker to shoot that way....my max distance is 35....that's the pin on top of the back. I've never had to use it. My average over many deer is about 13 yards.....
Basically the arc thing is a gimmick. It's BS for bow ranges. You need to practice where to aim at different yardages from your likely stand height...know where your bow will hit...then this... aim lower than you think on game. 100% of the time. The deer reacts like lightning, and they drop a down about 10-15" at the sound of the shot, especially when they are close. Usually the arrow catches them somewhere 1/2 way thru the act of bunching up to jump out of the way. Usually if I hit a deer target in the lungs at 20 yards, I'm going to shoot at a real deer about 4 inches lower in a real situation. Last year I shot 2 deer at 3 yards, from a 17 foot stand, both of them I aimed at the base of the brisket and took them thru both lungs mid body. Worked perfect, both died in sight within 30 yards, but if I had aimed at the lungs, i would have been over the back. That's where most guys with rangefinders, etc, make the mistake....they aim at a known yardage......works sometimes...but a lot of times your over the back. Besides if you do aim a little low and the deer doesn't react, you'll have a low hit, which bleeds better than a high one. Plus it's a higher percentage....hit low you might hit heart, or I've seen deer die from a sliced paunch, just a 4" cut. Hit high in no mans land above the vitals but below the spine and your likely not gonna find that deer.