Shell catcher question

Hi
I have recently bought a shell catcher /net . I can't seem to catch many, I have tried all different positions and locations . Today I shot 100 and caught 30, not looking for perfection but I should be able to get better than that.
I believe the problem is the gun, it doesn't seem to eject shells in the same direction.  Is there anyway to tune a 1911 to eject a shell in a more consistent direction ?
The extractor holds the shell tight enough not really sure what else to check.
Thanks , Tom

What is “tight enough?”
Many times it’s not enough to hold solid for the ejector to do its work.

I have mine so close it looks like its touching my arm (it isn't) but less chance of a miss. This works except for my Kimber .45. I would have to mount the shell catcher on my hat.

I don't yet have a catcher and am wondering if it's worth my time to even bother.
My CZ97 seems to shoot spent brass all over the place. With a good number going back over my right shoulder.
Even got hit in the face twice last night.

My understanding of tight enough is if you put a loaded round behind the extractor while the slide is off the gun you can't shake it out. As I said I think it's tight enough according to that test.
I have actually put the net right against my arm it helps but does nothing for the ones that roll up my arm and land on my shoulder.  Or fly directly over my head, not to mention the ones that go forward toward the target . Thanks for the input guys.
Tom

Length of the ejector and the shape of the end will determine the initial direction of the brass. If it hits something else (slide, scope) that will change the direction.

Steve T is right about the ejector. Also the shape of the extractor and where it holds onto the case matters, along with recoil spring. 
 I have my net close like Len and bag about 99% of empties.
 Stan