The way the Ping irons as of late look and perform, I would have no problem next time I purchase in going with a combo set of g700 and g400 irons. My only wish would be to make the g400 in 431 stainless steel like my Ie-1 irons are. The feel miles better than the i25 irons.
I'd like to see Ping do away with the iblade line and focus on the I series as more of a tour/players iron. I love my Ie-1 irons. I would love to see them go 431 in the g400 like I mentioned, keep the forgiveness in the i500 and maybe style the sole and size more like the s56 and go forged. Make that their "tour" iron.
I think tour players would like it and the golfing public would be more inclined to buy something they could actually play no problem.