I see where your coming from on the ability to hit your irons from different planes. In fact in my post I should have said that I'm trying to get more from the elbow plane (and my low boring iron shots) to more of a turned shoulder plane..... thus the move up in my lie angle.
A couple of months ago I had become frustrated with not being able to fix my low hand "problem". My last set of irons (that I played for 3 or 4 years) were a set of Mizuno MP-29's. I took 3 of them to a local fitter and asked him to bend them up 4 to 5 degrees. Being pretty soft they bend easily, and my thought was "I'll find a way to hit these straight" (to golfgnomes point) and maybe that will work me out of the under-plane stuff. These irons had a dime-sized wear pattern just a smidge toward the heel and the fitter looks at me and says "you're SURE you want to bend these up 5 degrees? looks like you hit em pretty good now!"
They did provide a very different feel, but I still didn't have a good enough plan as far as swing changes needed to get me more on plane.
CG
You would definitely benefit from Jeffs comments IMO.
Get fitted