KCee
As far as “hollow heads” it seems the G700 and i500 are true hollow heads whereas the Taylormade p790 is hollow but filled with foam so it sounds different which translates to “feel”. The i200 are like my ie-1 irons, 431 stainless.
i toyed with the idea of a split set of G700 4,5 and 6 irons and then 7,8,9,P,A in i500. I need to hit them as a solid club. This non-working shit has me bored. I’d see if I could get them bored out and drop the project x shafts I have in them.