RE: Form Opinions...Let me have it!
If you ever get into my area, stop by and I'll be glad to critique your form. I always give several options on form and explain what each option offers for the application. You've been given some good advice here. How it applies to your shooting needs/success is a personal choice.
One bit of advice that I will give is to make changes one at a time and evaluate the positives and negatives of each change before you try another change.
Good luck.