I’ve always thought, the best way to sell a game improvement iron or distance iron is make it look like a blade. Mizuno MP20 HMB for example, I borrowed a set of them from a buddy who resells clubs and everyone thought I had blades in the bag yet they’re a large hollow body. Everyone loves the look of a blade so why not make your forgiving line look similar?! Ping have started to do it with the i5 line from i500 onwards. If Titleist made a clean hollow body iron that looked just like the 620mb it would be their best selling iron ever, I’m sure of it.