Real quick summary of what i do, I use a app called "Video Stopwatch" on my phone and bind the right stick to my arrow keys. Then I hold down the arrow key to spin for like 3 minutes and record it to see how long it takes to do a 360 at that stick tilt. Then I use my phone calulator to do some math and plug the numbers into a desmos table in my phone. Then, once i make the curve with all my data, i use a exponential line of best fit equation to fit all the data points and then copy the values over to the xim ballistic editor by hand. I dont have any programs on pc or anything but i suppose someone could prolly build 1 if they wanted to lol