most setups will have the same arc if the arow weight is adjusted acordingly. if you want to shoot instinctivly dont bother looking at your arow, try staring at the X and shoot group after group focus on keeping everything the same from shot to shot grip, anchor, release, but the whole time just look at the X. your groups will start to tighten they may not be on target but if they start to look like the same shot every time, i mean the flight, and hit. if you just keep doing that the group will migrate twards the X. as far as flight even if they are kicking left or right as long as they are doing it the same every time you are doing good and now can start tuning. if they are kicking up or down your nock point needs to be moved. also your brace height can affect vertical and horizontal movement. you can work on this by twisting your string one way or the other when your shot is the quietest and you feel the least amount of hand shock you are close. then start adjusting for your arows. just keep shooting then shoot some more. consistancy is key.