It's been noted earlier in this string that you've apparently had some issues with shooting differences between your 1911 and some other pistols. Perhaps this question is somewhat related to that issue.
Here's my pre-1983 two cents worth on this matter:
The first pistol I owned was an AMT II .22 Automag. Truely awesome pistol in that caliber...a load of fun to shoot and sweet to carry in the field. And as accurate as anything I could hope for.
The second gun I bought was a Colt 1991A1 .45 ACP. Again, a wonderful pistol that I could shoot the centers out of targets with no problem at all. Sweet as candy.
The third gun I bought was a Baretta 92FS. I couldn't hit <
deleted> with it. There was no slop in the slide, no feed or ejection issues, no jamming. I just couldn't hit ANYTHING I was aiming at. My shots were all over the place.
Assuming that there was nothing wrong with the weapon because it was mechanically functioning perfectly, and my shots weren't consistently high/low/left/right, I had to stop and see what might be wrong with ME...or, perhaps, what was different about this pistol that was causing this problem, since I wasn't having this issue with my other two pistols.
The answer turned out to be the trigger. Not the fact that the first shot is double action (my other two pistols don't have this), but the fact that the Baretta trigger
pivots, whereas the triggers on my other two pistols do not. They pull straight back.
Anybody with an ounce of brains, and experience with pistols, will tell you that trigger control is extremely important in maintaining your target sight. Especially since the short distance between your front and rear sights is much shorter than that of a long-gun. Any little thing which keeps you from maintaining your target sight through a smooth trigger pull, up to the point of release, will throw your aim off. I just didn't realize that a different type of trigger would have that drastic of an effect on my shooting.
As soon as I realized this, I started concentrating on proper trigger pull for this type of trigger while maintaining my target sight. My aim improved rapidly.
By the nature of the beast, the angle between the grip and the barrel for most pistols will be similar...but there are enough differences between human hands to mean that the slight differences between one particular pistol's grip angle and another may make a difference to some individuals. I've read some links which talk about the 1911 having a "bad grip angle"...meaning it doesn't naturally allow you to point the weapon without abnormally adjusting your grip to compensate.
I think this is bull...people are different, therefore grips will be different from person to person. If the gun fits your hand comfortably and the gun seems to naturally "point" at what you aim at when you extend your arm, then the grip angle for that gun is perfectly OK for you.
In fact, these two characteristics (grip and pointability) are at the top of my list for important characteristics any person should consider when purchasing any practical firearm. If it's not a comfortable weapon to hold and you have to hold yourself in an unnatural position to shoot something, then it doesn't matter what it looks like, how well it's built, or how reliable it is...you won't feel comfortable with the weapon in your hand and therefore you won't find any joy in shooting it.
If you are having a problem accurately shooting one particular pistol, but no problems with another, then consider what may be
different about that pistol which may cause
you to shoot differently.
Often it's not that the pistol is bad or that the shooter is bad...but that the combination of the two together isn't working out for some reason.