The precision on these irons is terrible and that is the main cause of your frustration.
I'm guessing you chose these to for the meter speed and forgiveness and if that's what you feel you need most then fair enough but you'll need to put up with what you describe above happening sometimes.
I'ts hard for anyone to suggest what to do, as you'll know your game best, but focusing on forgiveness and meter speed doesn't seem sensible to me. If slowing the meter down lets you hit the ding more then you don't really need the high forgiveness rating so why not meter speed and precision or try to get used to a faster meter, and keep the insurance of high forgiveness, but again add a higher precision.
I do understand not everyone wants to spend lots of (money) credits on equipment but I think the L97 Callaway Rogues would be ideal for you (would give most of what you now have and lots more precision. There are cheaper opions if you are willing to compromise.