stock vs aftermarket shifter m6?
#3
The pro 5.0 is good from what I hear, but have never used it. I like the B&M ripper. It has the stoppers that prevent you from busting 3rd gear. It also have a tight feel and very short throw. You'll be happy with either one.
#5
Mine is very smooth still. The difference in the throws is amazing, I only wish I would have put a short throw in sooner. From what I've heard, all shifters are very good so I don't think you can go wrong with any of them.