Couldn’t agree more with AWS on ther German 4 reticle.
My lightweight calling 223 AR wears a VX-3 1.5-5x20. It has the German #4 reticle which is my favorite reticle for calling. That reticle helps you get on target fast, helps you find your reticle easier if looking into brush, and also helps it be more noticeable if using a light at night. 5x is plenty of magnification for most typical shots when calling, especially here where I’m at usually hunting close to or in the woods.
I also had a 1.75-6x32 VX3 with heavy duplex reticle. Bought it and the 1.5-5x20 at the same towards the end of last summer. I couldn’t really tell any difference in the image at the bottom end magnification and there wasn’t enough difference between 5x and 6x on the top end to matter. The difference was in the reticle. I felt like the heavy duplex took up a lot of the image where as the German 4 did not. Even though the German 4 is heavy bottom and side post, I felt like the heavy duplex appeared thicker (blocky) and there wasn’t as much of the finer reticle at the center of it compared to the German 4. I sold the 1.75-6 due to the reticle, even though I wanted to keep it due to have the tad larger objective for hunting late evenings or nights. Checked into sending it in for reticle change, but thanks to COVID that service was not available then.