Yea, different severs act different ways I have found. And not always the same way.
I know exactly what your talking about mad. Have you asked the other guys if they are noticing the same thing? I have never until today when Wumper got real ticked off at me. Each time we faced off my bullets looked like they were almost clear, and elongated in a way I do not normally see them. Very dull colored. The would disappear right into him and his bullets looked the same. He said something about me and disappearing and the like and then said he was going to report me...
Anyways, I asked the others and they did not notice anything. And I did not notice anything with them either. Then I popped in another game and had guys check me out there. Could not duplicate it.
I am really thinking that it is almost a device to device issue, not a across the board system, if that makes sense. Not saying this is all the time, but I've noticed it a few times now.
Sometimes I just log out all together and restart the computer. But most of the time switching servers works best.