After today, it's all historical.
It's all about fit and trigger pull right out the box.
most people would never know theres a difference.
Every man's heart one day beats its final beat, his lungs breathe their final breath and if what that man did in his life makes the blood pulse through the body of others and makes them believe deeper in something larger than life, then his essence, his spirit will be immortalized ,Forever!!!!!!!
I'd go series 70. I believe they aren't using the collet bushing on new production labeled as series 70.
The 70's type should have a better / crisper trigger pull because it doesn't have the firing pin block linkage thing that the 80's series does.