How many of you run row heads yet?  6 row, 8 row, or 12 row?  Likes & dislikes?

I've been running a 6 row for 12-15 years....since I started planting soybeans.  It's still running, but not too trustworthy lately.  I just bought & brought home a second one....used, but not too bad of shape.  I'll use them on the tall beans and the flex on shorter beans.  I hate to see reel shatter in tall beans.  If it weren't for the upkeep expense, I'd run them in all the beans and milo too.  I think they're hard to beat at getting the most grain in the tank.