We have very similar bags , I recently pulled my 4 iron for a 4hb (21*) dailed down to 23* with the shorter shaft it fits the gap perfect. Also switched to the Mizuno 225's great clubs
I was at the doctors a few years ago among other things I asked about tennis elbow I had. She asked what sports I played, golf came up she asked if I was left or right handed I told her and she suggested lessons !!! True story!