OK, I must admit, I thought "grip reduction" and "grip chop" were the same. I stand corrected. Thanks for the info.
David E: I don't believe I was arrogant at all. I was trying to be clear that I don't mean people complaining about Glock grip angle are imagining things. Merely that it's not a physical / ergonomics issue, but more of a design interfering with a learned habit.
A handgun with no grip, just a straight tube with a barrel on one end and a trigger on another, would be ergonomically wrong. In order to take an aim with it the shooter would have to twist his wrist at an unnatural angle.
Any handgun with a grip in the "normal" range is ergonomically fine. Here's three guns used by millions in WW2 and since:
There's really not that much difference in grip angle between the Luger, 1911 and TT33. If anything, Luger and 1911 look more similar than 1911 and TT.
Do you really think that one of them is somehow ergonomically superior to another, as far as grip angle is concerned ? I bet you that if you took any one design, made it with three different grip angles, gave it to people who's never handled a handgun before, had them use it for a few years, and then gave them the same exact gun with a different grip angle, they would complain that the new gun's grip angle was unnatural. Because by then, they would be used to bringing the gun up to a certain level to line up the sights, and any gun that needs to be brought up to the different level would feel wrong. So it is all in the head - as any learned muscle memory.
Objectively, TT grip angle is probably the least ergonomically correct since it would require the shooter to raise the gun to the highest level to have a straight line from eye through the sights to the target. It would probably also be the hardest gun to shoot well from the hip. But - having never handled a TT myself - I bet you that the real life difference between the three, for a person with no prior gun shooting habits, is minimal.
I never felt that Glock (same as Luger's) grip angle was unnatural. From the start I was accurate with it, for a beginner anyway. However after shooting Glock for a couple of months, I went to the gun store to check out an XD, and when I raised it in my hand to look through the sights, it pointed low - I had to raise it some more to see the target. My muscle memory was telling me that the gun was pointing where I'd expect my Glock to point. I can perfectly well see how someone used to the grip angle of 1911 (which is probably more common among the different guns on the market) would feel that a Glock "pointed high". But it would only point high for someone with a prior experience shooting other guns. For a complete novice, it would point just right. Pretty much any gun would.
Now, as far as the "hump" on the back, I can see how this could pose a problem for many - I wouldn't call Glock grip feel perfect. But it doesn't bug me, and I am much more comfortable shooting it, and shooting it accurately, than I am with some other equally popular guns. It works for me, may not work for you, but there's really nothing wrong with it. There are indeed guns that are problematic either by design or poor workmanship, but Glock isn't one of them.
The bottom line is, there's nothing wrong with Glock grip angle. It's just different. The beauty is, if you don't like it, there's many other great guns on the market with a different grip.