Just a quick question or two. I purchased a 27 used last weekend. I fired it today. I have a couple questions. 1. The ejected brass had a bend at the top end. Not so drastic that it looks like a "D" but pretty close. Is that an extractor problem? 2. Trigger kind of bites my finger. I am not sure what Gen this 27 is. But it does have finger grooves. How would one fix that issue? Put a 3.5lbs trigger on it? My gen 4 17 doesn't have this issue and it has a 3.5 lbs trigger. Thanks in advance!