kfloyd, I posed a related question to a very knowledgable and highly respected contributor to this forum: Gas_Can.
He indicated "In the case of the 735's, the sweet spot of the club moves fairly considerably from the heel biased pitching wedge to the almost toe biased three iron. The bounce numbers are different, with a high bounce three iron, and a low bounce short irons. So if you are a sweeper or a digger, at one end of the specturm you may encounter problems in soft or hard conditions".
Gas_Can's assessment of the 755s was very favourable. He pointed out that "...they have a thin topline, minimal offset, and a mid sized sole, but also a full cavity for forgiveness and a high ball flight which is especially great in the long irons. Also, since they are stainless steel, they will last considerably longer than the carbon steel forgings..."
I hope he doesn't mind me passing this information along and I would highly recommend that you drop him a note if you need more information.
Good luck,
Tommy