Missing the center is not just about loosing a few yards it’s about hitting the ball all over the place. Bottom of the face near the sole is a worm burner, no amount of added loft or shaft will change that.
I'm not talking about it any longer because the question is solved. You are right, I don't know what the rule says exactly, but for me having the option to leave the flag on the putting surface where your shot is intended to go feels like cheating even if it is within the rules.
@ncates00 Thanks so much this was incredibly useful, definitely a lot to work on! I'll be back in a few days after a few hundred swings and to you and @billchao I've got the tripod so I'll be sure to take my time to get the angle right for my next video! Thanks guys.