Hello! Thanks to all who posted to share their expertise.
An update: I bought a used Callaway Big Bertha 2004 6 iron, 2 up, +1/2" longer for $38 including $10 shipping. Went out to the range and hit a very much larger percentage of shots than before. For me, that was a red letter day in golf.
In another red letter day, my wife and I had our first lessons since last summer, yesterday, from the new pro at a nearby course. Great teacher! Great lesson! He figured, given my wrist to floor of 37" and watching me hit, that even +1.0" might be in order. For the next lesson, he said we will get a Cobra S9 demo club and use some tape to make some judgments about the lie angle. So far, the +2" seems to work pretty good.
After we zero in on this, I can then go on ahead and make some choices. One is to continue on the Callaway used lineup, where I could trade the 6 iron back in, if I wish.
As for my older clubs, as it turned out, they were exactly the same Cobra clubs the pro used about 8 years ago. But, they are in average condition, at best and I will look around to some of the area high school golf teachers and see if they could use them for kids who cannot afford to get clubs. I might get a whopping $50 for them as a trade --- and I would rather give them to a needy young man just starting out.
Again, thanks! As I proceed more, will share.
Regards,
Steve