RE: Holding Pin Steady Problems
The others are right. We tend to mess ourselves up by overthinking things and listening to all of the "coaches" online. I've learned (the hard way) that if you're shooting well and your set up works, don't change a thing. Guys will make suggestions and we'll read what we're supposed to do online, but you have to ask yourself "What will this make better?" If you don't have a good answer, don't change anything.
It's not that we shouldn't strive for improvement, but you have to look at the risk vs. the reward.
Another thing I noticed was that you seem to have made a lot of changes at once. If you want to improve and think a change will help, do it one step at a time. That way if it doesn't work you know it and can disregard it. If you make 3 changes at once and get screwed up you don't know which change has you messed up.