I played a combo set the past 2 years, and I agree. It was fun having the extra forgiveness in the long irons, and the consistancy in the scoring irons. I wish my set was 4-7 forgiving, but it only went to 6i.I currently play a combo set of irons and it'd be tough to not put together another set. I really like the forgiveness of the long irons and the worability of the scoring irons.
But then I wonder, why not just have the forgiveness all the way through? Would be fun to talk through with a fitter at ECPC, like some will do at the end if this year!