This will work ALOT better than the ez because it isn't counting on the riser to be square with the centershot path.
The biggest problem I see is it can't be used at full draw.So it is basically useless.
Cam adjustments and centershot adjustments have to be made at full draw to be accurate.If done in the static position,you are just as well to eyeball and then tune in the yard actaully shooting.Which has to be done regardless of what method you use.
If this was a full length arrow and you had a shooting machine,it would be the cats meow for getting into ultra fine tuning.Or bow setup.
The lazer that spot Hogg sell works awesome with a shooting machine.I have a friend that uses this combo for tuning and setting up bows for world competition and has even had a few bows that he has setup for shooters thathave set world records.