All of this is very helpful, so thank you.

At risk of sounding as new as I am, what does, "open face" mean?

One thing that is odd is that I get pretty much the same distance with all my irons. Length and face angle don't seem to make much difference at all. In fact, many times my 7 iron goes almost as far as my woods, but with more control. I feel like I can walk 9-holes with a 7 and a putter.
This will improve with time, yes?

Thanks
Michael