I am a newer member here with only 3 posts so far. I like the data that I have seen here so far, and I am going to try to get better at blogging. I don't post very often anywhere else. 6 years ago, I had a rodent problem and I needed to come up with a simpler sight for people like me that don't shoot well. Since that time, I have learned a lot about targeting theory. I now have a sight that a child can shoot at close range and be very accurate. For those that know their theory, here is some data pieces for reverse engineering. My sight is precision accurate at <1 yard and will be +/- 1/8" out to 13 yards. I have verified this data using Shooter's Trajectory Calculator. I have it on a Diana Chaser pistol and have had kids shoot a string that holds up a can at 12 yards. I am in the process of trying to get this sight licensed to a manufacturer. These sights are not on the market presently. I can prove my sight works, yet I meet a number of people that doubt the theory. The challenge is to figure out the theory, if you can. Need to post more to be able to direct message some members. I'm not looking for anything from anyone but good conversation. Thanks for reading.