Gapper, since you brought up "Truth in Advertising" I guess it's fair to cite an example.
As you know, Muller chokes are the result of more than 12,000 pattern tests, which is why each is matched to the kind of gun it is intended for.
And the results really are remarkable. This is from a folder I got with my Ü3 and Ü4 tubes.
You may justifiably wonder how the Muller tube could be so much better. Let's analyze those patterns with Shotgun-Insight ®. It's great for challenges like this.
Here's the non-Muller pattern:
As you see, there are 200 pellets total on the paper and the pattern looks pretty awful. The reason is found in the bar-graphs at the right and bottom. This pattern has a very, very "hot" center in comparison with the periphery as illustrated by those very "humped" curves.
And here's the Muller pattern
Now look at the pellet count, it's up to 400. So are we to conclude that Muller's chokes double the pellets on the paper?
But that's not the real problem. Anyone looking at that Muller pattern will recognize it as a amateurish fake. It was just done with a pen. No patterns look like that. Not even Mullers. Look at the bar-graphs to the right and below. The pattern is very even, right up to the edge. But there are no real patterns like that. Doesn't the guy making this folder think we know that? How dumb does he take us for?
In a way, the folder admits that:
But there are a couple of problems with just those two simple, declarative sentences.
1. The pictured patterns are _not_ representative; at least one of them is just a fake.
2. When I requested the "actual data," twice, it was not made available to me.
And why did he need to use "representations of actual target test results?" Out of 12,000 patterns he couldn't find two that would make his point without all that obvious, ham-fisted fakery?
Neil